Relevant bibliographies by topics / Difference-in-difference model

Academic literature on the topic 'Difference-in-difference model'

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Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Difference-in-difference model"

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Harris, Thomas Russell, Sankar Mukhopadhyay, and Nathan Wiseman. "An Application of Difference-in-Difference-Difference Model." Public Works Management & Policy 22, no. 2 (September 19, 2016): 165–78. http://dx.doi.org/10.1177/1087724x16665369.

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Xing, Husong, Zhehui Zhang, and Yuanhui Deng. "Port Logistics Policies Evaluation Based on Difference-in-Difference Model." MATEC Web of Conferences 124 (2017): 05002. http://dx.doi.org/10.1051/matecconf/201712405002.

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Shao, Y., and C. Stoecker. "MC1 THE EFFECT OF MEDICAID EXPANSION ON CANCER SCREENING RATE: A DIFFERENCE-IN-DIFFERENCE-IN-DIFFERENCE MODEL." Value in Health 23 (May 2020): S6—S7. http://dx.doi.org/10.1016/j.jval.2020.04.036.

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张, 亚南. "Cognitive Difference Model in Spatial Cognition." Advances in Psychology 12, no. 12 (2022): 4229–38. http://dx.doi.org/10.12677/ap.2022.1212510.

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Shimizu-Suganuma, Masumi, Kazumi Iida, Kazuyoshi Kato, and Kazuhiro Shichinohe. "Species difference in alloxan induced diabetes model." Japanese Journal of Pharmacology 76 (1998): 266. http://dx.doi.org/10.1016/s0021-5198(19)41173-6.

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Arkhangelsky, Dmitry, Susan Athey, David A. Hirshberg, Guido W. Imbens, and Stefan Wager. "Synthetic Difference-in-Differences." American Economic Review 111, no. 12 (December 1, 2021): 4088–118. http://dx.doi.org/10.1257/aer.20190159.

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We present a new estimator for causal effects with panel data that builds on insights behind the widely used difference-in-differences and synthetic control methods. Relative to these methods we find, both theoretically and empirically, that this “synthetic difference-in-differences” estimator has desirable robustness properties, and that it performs well in settings where the conventional estimators are commonly used in practice. We study the asymptotic behavior of the estimator when the systematic part of the outcome model includes latent unit factors interacted with latent time factors, and we present conditions for consistency and asymptotic normality. (JEL C23, H25, H71, I18, L66)
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Lee, Mi-Young. "Changes in the Clothing Expenditure using Difference in Difference Model: Comparison between Korean and U.S. Households." Korean Journal of Human Ecology 21, no. 2 (April 30, 2012): 349–62. http://dx.doi.org/10.5934/kjhe.2012.21.2.349.

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Jun-Fang, Tian, Jia Bin, Li Xing-Gang, and Gao Zi-You. "Flow difference effect in the lattice hydrodynamic model." Chinese Physics B 19, no. 4 (April 2010): 040303. http://dx.doi.org/10.1088/1674-1056/19/4/040303.

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Selverian, J. H. "Finite difference model of thorium transport in tungsten." Acta Materialia 45, no. 12 (December 1997): 5099–110. http://dx.doi.org/10.1016/s1359-6454(97)00155-9.

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Badin, Andriy, Fabrizio Gabbiani, and Alexey A. Petrov. "Lifetime difference in mixing: Standard Model and beyond." Physics Letters B 653, no. 2-4 (September 2007): 230–40. http://dx.doi.org/10.1016/j.physletb.2007.07.049.

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Dissertations / Theses on the topic "Difference-in-difference model"

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Scherbov, Sergei, and Dalkhat Ediev. "Does selection of mortality model make a difference in projecting population ageing?" Max Planck Institute for Demographic Research, 2016. http://dx.doi.org/10.4054/DemRes.2016.34.2.

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Background: In low mortality countries, assessing future ageing depends to a large extent on scenarios of future mortality reduction at old age. Often in population projections mortality reduction is implemented via life expectancy increases that do not specify mortality change at specific age groups. The selection of models that translate life expectancy into age-specific mortality rates may be of great importance for projecting the older age groups of future populations and indicators of ageing. Objective: We quantify how the selection of mortality models, assuming similar life expectancy scenarios, affects projected indices of population ageing. Methods: Using the cohort-component method, we project the populations of Italy, Japan, Russia, Sweden, and the USA. For each country, the given scenario of life expectancy at birth is translated into age-specific death rates by applying four alternative mortality models (variants of extrapolations of the log-mortality rates, the Brass relational model, and the Bongaarts shifting model). The models are contrasted according to their produced future age-specific mortality rates, population age composition, life expectancy at age 65, age at remaining life expectancy 15 years, and conventional and prospective old-age dependency ratios. Conclusions: We show strong differences between the alternative mortality models in terms of mortality age pattern and ageing indicators. Researchers of population ageing should be as careful about their choice of model of age patterns of future mortality as about scenarios of future life expectancy. The simultaneous extrapolation of age-specific death rates may be a better alternative to projecting life expectancy first and then deriving the age patterns of mortality in the second step.
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Sawyer, Jason. "Crossing Boundaries: Building a Model to Effectively Address Difference in Community Practice." VCU Scholars Compass, 2014. http://scholarscompass.vcu.edu/etd/3455.

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Community organizing has a rich tradition within the field of social work. Prevailing community practice models, approaches, and frameworks remain primarily based on practice wisdom, experience, and intuition. Difference, pervasive in various contemporary contexts of practice, largely mediates interactions at the community level. Although difference is addressed at various levels of the practice continuum and within the IFSW and NASW codes of ethics, few methodologically driven tools exist within the literature to guide practitioners. This grounded theory study initiates early development of a community practice model based on forging alliances across boundaries of difference. The Critical Difference Engagement model is based on local community leaders’ and organizers’ experiences working across dimensions of power, race, gender, age, sexual orientation, and socio-economic status, it provides practitioners with a framework for social change and building solidarity across difference in multiple contexts.
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McInerney, David J. "A triangular grid finite-difference model for wind-induced circulation in shallow lakes /." Title page, table of contents and abstract only, 2005. http://web4.library.adelaide.edu.au/theses/09PH/09phm4790.pdf.

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Peluso, Alina. "Novel regression models for discrete response." Thesis, Brunel University, 2017. http://bura.brunel.ac.uk/handle/2438/15581.

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In a regression context, the aim is to analyse a response variable of interest conditional to a set of covariates. In many applications the response variable is discrete. Examples include the event of surviving a heart attack, the number of hospitalisation days, the number of times that individuals benefit of a health service, and so on. This thesis advances the methodology and the application of regression models with discrete response. First, we present a difference-in-differences approach to model a binary response in a health policy evaluation framework. In particular, generalized linear mixed methods are employed to model multiple dependent outcomes in order to quantify the effect of an adopted pay-for-performance program while accounting for the heterogeneity of the data at the multiple nested levels. The results show how the policy had a positive effect on the hospitals' quality in terms of those outcomes that can be more influenced by a managerial activity. Next, we focus on regression models for count response variables. In a parametric framework, Poisson regression is the simplest model for count data though it is often found not adequate in real applications, particularly in the presence of excessive zeros and in the case of dispersion, i.e. when the conditional mean is different to the conditional variance. Negative Binomial regression is the standard model for over-dispersed data, but it fails in the presence of under-dispersion. Poisson-Inverse Gaussian regression can be used in the case of over-dispersed data, Generalised-Poisson regression can be employed in the case of under-dispersed data, and Conway-Maxwell Poisson regression can be employed in both cases of over- or under-dispersed data, though the interpretability of these models is ot straightforward and they are often found computationally demanding. While Jittering is the default non-parametric approach for count data, inference has to be made for each individual quantile, separate quantiles may cross and the underlying uniform random sampling can generate instability in the estimation. These features motivate the development of a novel parametric regression model for counts via a Discrete Weibull distribution. This distribution is able to adapt to different types of dispersion relative to Poisson, and it also has the advantage of having a closed form expression for the quantiles. As well as the standard regression model, generalized linear mixed models and generalized additive models are presented via this distribution. Simulated and real data applications with different type of dispersion show a good performance of Discrete Weibull-based regression models compared with existing regression approaches for count data.
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King-Smith, Leah. "Resonances of difference : creative diplomacy in the multidimensional and transcultural aesthetics of an indigenous photomedia practice." Thesis, Queensland University of Technology, 2006. https://eprints.qut.edu.au/16321/1/Leah_King-Smith_Thesis.pdf.

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Multidimensional aesthetics in photomedia practice shift the emphasis away from the culturally dominating singularity of the camera's eye-piece towards a supple interplay of semi-transparent image planes and shifting positions. Using various image-capture devices that can produce digital, film, still or moving pictures, I create bodies of work that invite the viewer to see many perspectives simultaneously. The challenge is to implement the effectiveness of the technologies and simultaneously dislodge those principles and values fundamental to their imperialist cultural backgrounds. My practice investigates a diplomatic negotiability of aesthetic language to accommodate conceptual and cultural difference/s. Located on the print surface or in animated sequences are symbolic representations that disclose histories, cultures, times and places in subtle and ambiguous ways. The interplay of allure and resistance, repetition and change, are strategies that reveal the delicate and paradoxical nature of the multidimensional psyche.
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King-Smith, Leah. "Resonances of difference : creative diplomacy in the multidimensional and transcultural aesthetics of an indigenous photomedia practice." Queensland University of Technology, 2006. http://eprints.qut.edu.au/16321/.

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Multidimensional aesthetics in photomedia practice shift the emphasis away from the culturally dominating singularity of the camera's eye-piece towards a supple interplay of semi-transparent image planes and shifting positions. Using various image-capture devices that can produce digital, film, still or moving pictures, I create bodies of work that invite the viewer to see many perspectives simultaneously. The challenge is to implement the effectiveness of the technologies and simultaneously dislodge those principles and values fundamental to their imperialist cultural backgrounds. My practice investigates a diplomatic negotiability of aesthetic language to accommodate conceptual and cultural difference/s. Located on the print surface or in animated sequences are symbolic representations that disclose histories, cultures, times and places in subtle and ambiguous ways. The interplay of allure and resistance, repetition and change, are strategies that reveal the delicate and paradoxical nature of the multidimensional psyche.
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Stone, Peter (Peter Robert). "A new model for electric force microscopy and its application for electrostatically generated phase difference in tapping mode AFM." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32855.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2005.
Includes bibliographical references (leaf 37).
The harmonic force balance method was used to model and simulate electric force microscopy (EFM) and electrostatically generated phase difference in tapping mode AFM (EPTA) measurements. Simulations show that the harmonic force balance approach matches and explains EFM and EPTA experimental results well. Simulations also show that the model depended on both geometric and materials parameters. The harmonic force balance model was subsequently used to directly simulate a previously performed EPTA experiment. Data obtained from the model showed a remarkable similarity to the experimentally obtained data, thus validating the use of the harmonic force balance model to simulate EPTA data.
by Peter Stone.
S.B.
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Jahng, Seungmin Kolenikov Stanislav. "A mixed model for variance of successive difference of stationary time series modeling temporal instability in intensive longitudinal data /." Diss., Columbia, Mo. : University of Missouri--Columbia, 2008. http://hdl.handle.net/10355/6279.

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Title from PDF of title page (University of Missouri--Columbia, viewed on Feb. 18, 2010). The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Dr. Stanislav Kolenikov, Thesis Supervisor Includes bibliographical references.
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Wewel, Solvejg Andrea. "Essays in Household Economics and Econometrics." Thesis, Boston College, 2018. http://hdl.handle.net/2345/bc-ir:107901.

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Thesis advisor: Arthur Lewbel
My doctoral research comprises both structural empirical work in the field of household economics (Chapters 1 and 3) and reduced-form theoretical work in econometrics (Chapter 2). The first chapter quantifies consumption gains in the form of consumption expenditure savings for couples living together versus apart. Moreover, I comprehensively analyze the key drivers of heterogeneity in consumption gains across couples. The second chapter, which is joint work with Stefan Hoderlein, develops the first difference-in-differences model for binary choice outcome variables when treatment effects are heterogeneous. Finally, in the third chapter, I study the realized gains in consumption levels upon move-in from single to couple and move-out from couple to single, separately by gender. Chapter 1. In “Heterogeneity in Consumption Gains from Living Together as a Couple”, I estimate consumption gains from living together versus apart. Specifically, this chapter quantifies these gains from consumption economies of scale for married as well as unmarried cohabiting couples in the U.S. I also comprehensively analyze the determinants of heterogeneity in consumption gains. For this purpose, I extend a recent collective household model to incorporate heterogeneity in consumption economies of scale and perform structural estimation using data from the Panel Study of Income Dynamics (PSID). I find that couples living together save an average of 14 percent in annual consumption expenditures compared to their counterfactual spending when living apart. Moreover, older couples and homeowner couples experience higher consumption economies of scale and thus higher consumption gains. I do not detect marital status to be a determining factor. These results have implications for appropriate adjustment of poverty thresholds across households of different sizes. Chapter 2. In “Binary Choice Difference-in-Differences Model with Heterogeneous Treatment Effects”, we develop the first Difference-in-Differences Model for binary choice outcome variables when treatment effects are heterogeneous. Our main result establishes identification of the average treatment effect on the treated (ATT). Moreover, we present two extensions. First, we show identification of the joint distribution of the actual and counterfactual latent outcome variable in the treatment group. Second, we extend the basic model to allow for the inclusion of covariates. We suggest an estimator for the ATT and evaluate its finite sample properties with the help of Monte Carlo simulations. Chapter 3. In “Realized Consumption Gains from Living Together as a Couple by Gender”, I am among the first to analyze how consumption gains from living together as a couple are split between men and women and whether this varies by individual-level or couple-level observables. Understanding individual-level consumption gains is important for rationalizing marriage and cohabitation decisions on the micro-level, and marriage and cohabitation patterns on the macro-level. I use the extended collective household model from Chapter 1 and data from the PSID to estimate male and female realized consumption gains from moving in as a couple and moving out of a couple. Average realized consumption gains upon move-in are positive for women and negative for men. This reverses for dissolving couples. Lastly, individuals who move in with their spouse have higher realized consumption gains than individuals who decide to cohabit without a marriage certificate
Thesis (PhD) — Boston College, 2018
Submitted to: Boston College. Graduate School of Arts and Sciences
Discipline: Economics
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Cavayero, Chloe N. "The use of the developmental individual difference relationship-based (DIR) model on a child with autism in the classroom environment." Honors in the Major Thesis, University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/1245.

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This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information.
Bachelors
Office of Undergraduate Studies
Interdisciplinary Studies
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Books on the topic "Difference-in-difference model"

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Florence, Pamela. Northwest women in science: Women making a difference : a role model guidebook. Richland, WA: Northwest College and University Association for Science, 1992.

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Rutledge, A. T. An Axisymmetric finite-difference flow model to simulate drawdown in and around a pumped well. Lawrence, Kans: U.S. Dept. of the Interior, U.S. Geological Survey, 1991.

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Rutledge, A. T. An Axisymmetric finite-difference flow model to simulate drawdown in and around a pumped well. Lawrence, Kans: U.S. Dept. of the Interior, U.S. Geological Survey, 1991.

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Rutledge, A. T. An Axisymmetric finite-difference flow model to simulate drawdown in and around a pumped well. Lawrence, Kans: U.S. Dept. of the Interior, U.S. Geological Survey, 1991.

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Rutledge, A. T. An Axisymmetric finite-difference flow model to simulate drawdown in and around a pumped well. Lawrence, Kans: U.S. Dept. of the Interior, U.S. Geological Survey, 1991.

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Rutledge, A. T. An Axisymmetric finite-difference flow model to simulate drawdown in and around a pumped well. Lawrence, Kans: U.S. Dept. of the Interior, U.S. Geological Survey, 1991.

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Essaid, Hedeff I. The computer model SHARP, a quasi-three-dimensional finite-difference model to simulate freshwater and saltwater flow in layered coastal aquifer systems. Menlo Park, Calif: Dept. of the Interior, U.S. Geological Survey, 1990.

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Gillett, Blakeney. Microcomputer 3-D finite difference MODFLOW model for shallow layered aquifer systems in the Gulf Shores area of southwest Alabama. Tuscaloosa, Ala. (P.O. Box O, Tuscaloosa, 35486-9780): Geological Survey of Alabama, Hydrogeology Division, 1994.

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Dezin, A. A. Differential operator equations: A method of model operators in the theory of boundary value problems. Moscow: Maik Nauka/Interperiodica, 2000.

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Duffy, Daniel J. Finite Difference Methods in Financial Engineering. New York: John Wiley & Sons, Ltd., 2006.

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Book chapters on the topic "Difference-in-difference model"

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Alvarez-Picallo, Mario, and Jean-Simon Pacaud Lemay. "Cartesian Difference Categories." In Lecture Notes in Computer Science, 57–76. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-45231-5_4.

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AbstractCartesian differential categories are categories equipped with a differential combinator which axiomatizes the directional derivative. Important models of Cartesian differential categories include classical differential calculus of smooth functions and categorical models of the differential $$\lambda $$ λ -calculus. However, Cartesian differential categories cannot account for other interesting notions of differentiation such as the calculus of finite differences or the Boolean differential calculus. On the other hand, change action models have been shown to capture these examples as well as more “exotic” examples of differentiation. However, change action models are very general and do not share the nice properties of a Cartesian differential category. In this paper, we introduce Cartesian difference categories as a bridge between Cartesian differential categories and change action models. We show that every Cartesian differential category is a Cartesian difference category, and how certain well-behaved change action models are Cartesian difference categories. In particular, Cartesian difference categories model both the differential calculus of smooth functions and the calculus of finite differences. Furthermore, every Cartesian difference category comes equipped with a tangent bundle monad whose Kleisli category is again a Cartesian difference category.
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Saito, Kaori. "On the Stability of an SIR Epidemic Discrete Model." In Advances in Difference Equations and Discrete Dynamical Systems, 231–39. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-6409-8_15.

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Tanaka, Aiko, and Jun-ichi Itaya. "An Evolutionary Game Model of Families’ Voluntary Provision of Public Goods." In Advances in Difference Equations and Discrete Dynamical Systems, 259–74. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-6409-8_17.

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Lee, SeungGwan, and TaeChoong Chung. "A Reinforcement Learning Algorithm Using Temporal Difference Error in Ant Model." In Computational Intelligence and Bioinspired Systems, 217–24. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11494669_27.

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Mastroianni, Bruno. "From the Virtues of Argumentation to the Happiness of Dispute." In Competing, cooperating, deciding: towards a model of deliberative debate, 25–41. Florence: Firenze University Press, 2021. http://dx.doi.org/10.36253/978-88-5518-329-1.04.

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Efficient debate training should develop the ability to manage real discussions and not just be a laboratory for ideal talks. In this regard, the perspective of the virtues of argumentation is particularly suitable. Virtuous arguing allows the recognition of the other's difference – the contemplation of difference. Using Aristotelian ideas of contemplation as happiness opens up the possibility of accepting the arguers' imperfections and configure disputes suitable for producing shared outcomes, making them genuinely deliberative.
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Chiba, Ryosuke, Hiroaki Ogawa, Kaoru Takakusaki, Hajime Asama, and Jun Ota. "Muscle Activities Changing Model by Difference in Sensory Inputs on Human Posture Control." In Advances in Intelligent Systems and Computing, 479–91. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-33932-5_44.

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Qi, Wei Hong, Ming Pu Wang, Zhou Li, and Wang Yu Hu. "Surface-Area-Difference Model for Melting Temperature of Metallic Nanocrystals Embedded in a Matrix." In Solid State Phenomena, 1181–88. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/3-908451-30-2.1181.

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Stanisławski, Rafał, Marek Rydel, and Krzysztof J. Latawiec. "Balanced Truncation Model Reduction in Approximation of Nabla Difference-Based Discrete-Time Fractional-Order Systems." In Studies in Systems, Decision and Control, 199–220. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-89972-1_7.

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Khajikhan, Tansaya. "Gender Difference in Households’ Expenditure on Higher Education: Evidence from Mongolia." In Between Peace and Conflict in the East and the West, 211–44. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77489-9_11.

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AbstractThe existing evidence suggests that there is a reverse gender gap in higher education in Mongolia. Prior studies on the reverse gender gap in education were based on the gross enrolment rates and did not delve deeper in terms of using empirical data analyzed over an extended time-period. This paper investigates gender bias in the households’ expenditure on higher education and tracks changes over the ten-year period from 2008 to 2018 using empirical data. In this regard, this study examines the factors and determinants responsible for the gender bias in the households’ expenditure on higher education. To address these questions, the study employs the Engel Curve approach (unconditional educational expenditure) and Hurdle model, which estimates bias in the enrolment decisions and bias in the conditional educational expenditure, both at the household and individual level in 2008 and 2018, using the Household Socio-Economic Survey of Mongolia. Its findings illustrate that gender bias in households’ expenditure on higher education does exist, and it favors girls over boys at the household and individual levels in 2008 and 2018. The findings show that households allocate a greater share of education expenditure to females aged 16–18 and 19–24 than to their male counterparts. Statistical analysis suggests that households’ residence and the occupation of household heads are two important factors affecting this gender bias. Thus, if a household resides in the countryside and its head is employed in the agricultural sector, female offspring are more likely to receive higher education than male offspring. Traditional gender roles and the Mongolian way of life, which centers around attending to livestock and requiring a male labor force and the wage gap, are contextual factors that help explain this gender bias.
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Nori, Fumie, Afia Akhter Lipi, and Yukiko Nakano. "Cultural Difference in Nonverbal Behaviors in Negotiation Conversations: Towards a Model for Culture-Adapted Conversational Agents." In Universal Access in Human-Computer Interaction. Design for All and eInclusion, 410–19. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21672-5_45.

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Conference papers on the topic "Difference-in-difference model"

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Tong, Zhou, Li Yuxuan, and Zhang Geng. "The Drivers' Individual Behavior Difference in Car-Following Model." In 2016 International Conference on Intelligent Transportation, Big Data & Smart City (ICITBS). IEEE, 2016. http://dx.doi.org/10.1109/icitbs.2016.59.

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Yang, Min, Jingyao Zhao, Feifei Yu, and Jingxian Wu. "Ordered Logistics Model for Gender Difference in Activity Frequency." In The Twelfth COTA International Conference of Transportation Professionals. Reston, VA: American Society of Civil Engineers, 2012. http://dx.doi.org/10.1061/9780784412442.007.

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De Silva, D. V. S. X., W. A. C. Fernando, S. T. Worrall, S. L. P. Yasakethu, and A. M. Kondoz. "Just noticeable difference in depth model for stereoscopic 3D displays." In 2010 IEEE International Conference on Multimedia and Expo (ICME). IEEE, 2010. http://dx.doi.org/10.1109/icme.2010.5582582.

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Huo, Donglai, and David L. Wilson. "Using perceptual difference model to improve GRAPPA reconstruction in MRI." In Medical Imaging, edited by Yulei Jiang and Miguel P. Eckstein. SPIE, 2006. http://dx.doi.org/10.1117/12.655607.

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in 't Hout, Karel. "Finite difference approximation of hedging quantities in the Heston model." In NUMERICAL ANALYSIS AND APPLIED MATHEMATICS ICNAAM 2012: International Conference of Numerical Analysis and Applied Mathematics. AIP, 2012. http://dx.doi.org/10.1063/1.4756108.

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Düring, Bertram, Michel Fournié, Theodore E. Simos, George Psihoyios, and Ch Tsitouras. "Compact Finite Difference Scheme for Option Pricing in Heston’s Model." In ICNAAM 2010: International Conference of Numerical Analysis and Applied Mathematics 2010. AIP, 2010. http://dx.doi.org/10.1063/1.3498409.

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Tiantian, Zhang. "Research on The Influence of Transportation Infrastructure on Urban Development Gap in Yangtze River Delta Based on the Difference-in-Difference model." In 2021 2nd International Conference on Urban Engineering and Management Science (ICUEMS). IEEE, 2021. http://dx.doi.org/10.1109/icuems52408.2021.00031.

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Zhu, Guangzhi, Yufan Feng, Xiao Zhu, and Changhong Zhu. "Analytical model of Optical path difference in Yb:YAG thin disk laser." In Advanced Solid State Lasers. Washington, D.C.: OSA, 2014. http://dx.doi.org/10.1364/assl.2014.atu2a.25.

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Kim, Do-Gyun, and Young-Wan Choi. "Novel rate equation model using finite difference method in time domain." In Asia-Pacific Optical Communications, edited by Chang Soo Park, Shizhong Xie, Curtis R. Menyuk, and Ken-ichi Kitayama. SPIE, 2006. http://dx.doi.org/10.1117/12.688769.

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Schroeder, Christoph T., and Waymond R. Scott, Jr. "Finite-difference time-domain model for elastic waves in the ground." In AeroSense '99, edited by Abinash C. Dubey, James F. Harvey, J. Thomas Broach, and Regina E. Dugan. SPIE, 1999. http://dx.doi.org/10.1117/12.357021.

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Reports on the topic "Difference-in-difference model"

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Lundquist, Katherine A. Truly horizontal finite difference scheme in the WRF model FY18 Q1 Update. Office of Scientific and Technical Information (OSTI), September 2018. http://dx.doi.org/10.2172/1476236.

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Martínez, Lina María, and Juan Tomás Sayago. Does Public Investment Contribute to Increasing Institutional and Interpersonal Trust?: Place-Based Policies for Sports and Cultural Activities in Cali, Colombia. Inter-American Development Bank, December 2021. http://dx.doi.org/10.18235/0003827.

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This paper studies the effect of two place-based policies implemented in Cali, Colombia on social capital and trust. We use the CaliBRANDO survey to account for institutional and interpersonal trust, matching neighborhood of residence and where policies are applied. We set up a difference-in-difference model to estimate the impact of the policies on the indexes that measure trust. We nd that the organized sport policy improves institutional trust by about 4%. Our results are significant for soccer and basketball and not significant for futsal and other activities. The evidence does not support an effect of nightlights on trust.
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Mullahy, John. Interaction Effects and Difference-in-Difference Estimation in Loglinear Models. Cambridge, MA: National Bureau of Economic Research, November 1999. http://dx.doi.org/10.3386/t0245.

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Woods, Mel, Saskia Coulson, Raquel Ajates, Angelos Amditis, Andy Cobley, Dahlia Domian, Gerid Hager, et al. Citizen Science Projects: How to make a difference. WeObserve, 2020. http://dx.doi.org/10.20933/100001193.

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Citizen Science Projects: How to make a difference, is a massive open online course (MOOC). It was developed by the H2020 WeObserve project and ran on the FutureLearn platform from 2019. The course was designed to assist learners from all backgrounds and geographical locations to discover how to build their own citizen science project to address global challenges and create positive change. It also helped learners with interpreting the information they collected and using their findings to educate others about important local and global concerns. The main learning objectives for the course were: * Discover what citizen science and citizen observatories are * Engage with the general process of a citizen science project, the tools used and where they can be accessed * Collect and analyse data on relevant issues such as environmental challenges and disaster management, and discuss the results of their findings * Explore projects happening around the world, what the aims of these projects are and how learners could get involved * Model the steps to create their own citizen science project * Evaluate the potential of citizen science in bringing about change This course also provided five open-source, downloadable tools which have been tested in previous citizen science projects and created for the use of a wider range of projects. These tools are listed below and available in the research repository: * Empathy timeline tool * Community-level indicators tool * Data postcards tool * Future newspaper tool * Co-evaluation tool
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McKnight, C., David May, and Keaton Jones. Numerical analysis of dike effects on the Mississippi River using a two-dimensional Adaptive Hydraulics model (AdH). Engineer Research and Development Center (U.S.), November 2022. http://dx.doi.org/10.21079/11681/46120.

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This report describes the hydraulic effects of dikes on water surface elevation (WSE) and velocities in the Mississippi River near Vicksburg, MS, from Interstate 20 to Highway 80 using a previously calibrated 2D Adaptive Hydraulics numerical model. Dike heights and their associated hydraulic roughness values were varied to quantify the overall effects of adjustments to dike fields. Steady flows characterized as low, medium, and high conditions were simulated. The WSE and velocity difference plots were generated to illustrate the hydraulic effects on the river under all scenarios discussed above. Overall, the dike adjustments had negligible impacts on WSEs and showed minimal effects on velocities on a system-wide scale.
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Scholl, Lynn, Felipe Bedoya-Maya, Orlando Sabogal-Cardona, and Daniel Oviedo. Making the Links between Ride-hailing and Public Transit Ridership: Impacts in Medium and Large Colombian Cities. Inter-American Development Bank, October 2021. http://dx.doi.org/10.18235/0003697.

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As transit ridership continues to fall in many cities across the globe, key policy debates continue around whether Uber and other ride-hailing services are contributing to this trend. This research explores the effects of the introduction of ride-hailing to Colombian cities on public transportation ridership using Ubers timeline as case study. We test the hypothesis that ride-hailing may either substitute or compete with public transit, particularly in cities with large transit service gaps in coverage or quality. Our analysis builds on historic transit ridership data from national authorities and uses a staggered difference-in-difference model that accounts for fixed effects, seasonality, socioeconomic controls, and the presence of integrated transport systems. Despite large reductions in transit ridership in most cities, our results suggest that Uber is not statistically associated with the observed drop in ridership. Moreover, consistent with evidence from previous research, public transit reforms implemented between 2007 and 2015 throughout Colombian cities appear to have contributed substantially to the declines in transit ridership observed across the country. Findings in this paper inform policy-targeted insights and contribute to current debates of the links between ride-hailing and public transit in cities in Latin America.
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Blundell, S. User guide : the DEM Breakline and Differencing Analysis Tool—gridded elevation model analysis with a convenient graphical user interface. Engineer Research and Development Center (U.S.), August 2022. http://dx.doi.org/10.21079/11681/45040.

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Gridded elevation models of the earth’s surface derived from airborne lidar data or other sources can provide qualitative and quantitative information about the terrain and its surface features through analysis of the local spatial variation in elevation. The DEM Breakline and Differencing Analysis Tool was developed to extract and display micro-terrain features and vegetative cover based on the numerical modeling of elevation discontinuities or breaklines (breaks-in-slope), slope, terrain ruggedness, local surface optima, and the local elevation difference between first surface and bare earth input models. Using numerical algorithms developed in-house at the U.S. Army Engineer Research and Development Center, Geospatial Research Laboratory, various parameters are calculated for each cell in the model matrix in an initial processing phase. The results are combined and thresholded by the user in different ways for display and analysis. A graphical user interface provides control of input models, processing, and display as color-mapped overlays. Output displays can be saved as images, and the overlay data can be saved as raster layers for input into geographic information systems for further analysis.
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Athey, Susan, and Guido Imbens. Identification and Inference in Nonlinear Difference-In-Differences Models. Cambridge, MA: National Bureau of Economic Research, September 2002. http://dx.doi.org/10.3386/t0280.

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Kott, Phillip S. The Role of Weights in Regression Modeling and Imputation. RTI Press, April 2022. http://dx.doi.org/10.3768/rtipress.2022.mr.0047.2203.

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When fitting observations from a complex survey, the standard regression model assumes that the expected value of the difference between the dependent variable and its model-based prediction is zero, regardless of the values of the explanatory variables. A rarely failing extended regression model assumes only that the model error is uncorrelated with the model’s explanatory variables. When the standard model holds, it is possible to create alternative analysis weights that retain the consistency of the model-parameter estimates while increasing their efficiency by scaling the inverse-probability weights by an appropriately chosen function of the explanatory variables. When a regression model is used to impute for missing item values in a complex survey and when item missingness is a function of the explanatory variables of the regression model and not the item value itself, near unbiasedness of an estimated item mean requires that either the standard regression model for the item in the population holds or the analysis weights incorporate a correctly specified and consistently estimated probability of item response. By estimating the parameters of the probability of item response with a calibration equation, one can sometimes account for item missingness that is (partially) a function of the item value itself.
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McGee, Steven, Jennifer Kirby, Geneva Haertel, and Angela Haydel DeBarger. Taking students on a journey to El Yunque: An examination of cognitive apprenticeship. The Learning Partnership, April 2006. http://dx.doi.org/10.51420/conf.2006.1.

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The Journey to El Yunque program was designed using the cognitive apprenticeship model. Students analyze the same data that scientists in the rainforest use for their research, while at the same time, covering all of the national middle school ecology standards. In this study we seek to build a framework that integrates design-based research methods with traditional evaluation. The resulting enactment of the curriculum provides formative feedback about the curriculum as well as about the design model itself. An ecology assessment was developed using publicly released state assessment items. A quasiexperimental design study was used to evaluate the effectiveness of the beta version of the program. The results show that Journey to El Yunque was more effective at helping students learn population dynamics, while the traditional ecology curriculum was more effective at helping students understand energy flow definitions. This difference in performance is consistent with the underlying design based on the cognitive apprenticeship model.
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