archive-edu.com » EDU » U » UCHICAGO.EDU

Total: 445

Choose link from "Titles, links and description words view":

Or switch to "Titles and links view".
  • Ratio-of-Mediator-Probability Weighting for Causal Mediation Analysis in the Presence of Treatment-by-Mediator Interaction | Becker-Friedman Institute Research Respository
    Mediation Analysis in the Presence of Treatment by Mediator Interaction Conventional methods for mediation analysis generate biased results when the mediator outcome relationship depends on the treatment condition This article introduces a new technique ratio of mediator probability weighting RMPW for decomposing total effects into direct and indirect effects in the presence of treatment by mediator interactions The indirect effect can be further decomposed into a pure indirect effect and a natural treatment by mediator interaction effect The latter captures the treatment effect transmitted through a change in the mediational process We illustrate how to apply the technique to identifying whether employment mediated the relationship between an experimental welfare program and maternal depression In comparison with other techniques for mediation analysis RMPW requires relatively few assumptions about the distribution of the outcome the distribution of the mediator and the functional form of the outcome model and is easy to implement using standard statistical software Simulation results reveal satisfactory performance of the parametric and non parametric RMPW procedures under the identification assumptions and show a relatively higher level of robustness of the non parametric procedure We provide a tutorial and Stata code for implementing this technique Authors Guanglei Hong The University

    Original URL path: http://econresearch.uchicago.edu/content/ratio-mediator-probability-weighting-causal-mediation-analysis-presence-treatment-mediator (2015-06-03)
    Open archived version from archive


  • Education Policy and Intergenerational Transfers in Equilibrium | Becker-Friedman Institute Research Respository
    admin for help if this error continues User login CNetID or Username Password Request new password Log in Education Policy and Intergenerational Transfers in Equilibrium This paper compares partial and general equilibrium effects of alternative financial aid policies intended to promote college participation We build an overlapping generations life cycle heterogeneous agent incomplete markets model with education labor supply and consumption saving decisions Altruistic parents make inter vivos transfers to their children Labor supply during college government grants and loans as well as private loans complement parental transfers as sources of funding for college education We find that the current financial aid system in the U S improves welfare and removing it would reduce GDP by two percentage points in the long run Any further relaxation of government sponsored loan limits would have no salient effects The short run partial equilibrium effects of expanding tuition grants especially their need based component are sizable However long run general equilibrium effects are 3 4 times smaller Every additional dollar of government grants crowds out 20 30 cents of parental transfers Authors Brant Abbott University of British Columbia Giovanni Gallipoli University of British Columbia Costas Meghir Yale University Gianluca Violante New York University

    Original URL path: http://econresearch.uchicago.edu/content/education-policy-and-intergenerational-transfers-equilibrium (2015-06-03)
    Open archived version from archive

  • Multinomial Inverse Regression for Text Analysis | Becker-Friedman Institute Research Respository
    Request new password Log in Multinomial Inverse Regression for Text Analysis Text data including speeches stories and other document forms are often connected to sentiment variables that are of interest for research in marketing economics and elsewhere It is also very high dimensional and difficult to incorporate into statistical analyses This article introduces a straightforward framework of sentiment preserving dimension reduction for text data Multinomial inverse regression is introduced as a general tool for simplifying predictor sets that can be represented as draws from a multinomial distribution and we show that logistic regression of phrase counts onto document annotations can be used to obtain low dimension document representations that are rich in sentiment information To facilitate this modeling a novel estimation technique is developed for multinomial logistic regression with very high dimension response In particular independent Laplace priors with unknown variance are assigned to each regression coefficient and we detail an efficient routine for maximization of the joint posterior over coefficients and their prior scale This gamma lasso scheme yields stable and effective estimation for general high dimension logistic regression and we argue that it will be superior to current methods in many settings Guidelines for prior specification are provided

    Original URL path: http://econresearch.uchicago.edu/content/multinomial-inverse-regression-text-analysis (2015-06-03)
    Open archived version from archive

  • Measuring Investment in Human Capital Formation: An Experimental Analysis of Early Life Outcomes | Becker-Friedman Institute Research Respository
    formation and human capital development clearly demonstrates that early investment in children is an equitable and efficient policy with large returns in adulthood Yet little is known about the mechanisms involved in producing these long term effects This paper presents early evidence on the nature of skill formation based on an experimentally designed five year home visiting program in Ireland targeting disadvantaged families Preparing for Life PFL We examine the impact of investment between utero to 18 months of age on a range of parental and child outcomes Using the methodology of Heckman et al 2010a permutation testing methods and a stepdown procedure are applied to account for the small sample size and the increased likelihood of false discoveries when examining multiple outcomes The results show that the program impact is concentrated on parental behaviors and the home environment with little impact on child development at this early stage This indicates that home visiting programs can be effective at offsetting deficits in parenting skills within a relatively short timeframe yet continued investment may be required to observe direct effects on child development While correcting for attrition bias leads to some changes in the precision of estimates overall the results are

    Original URL path: http://econresearch.uchicago.edu/content/measuring-investment-human-capital-formation-experimental-analysis-early-life-outcomes (2015-06-03)
    Open archived version from archive

  • Econometric Mediation Analyses: Identifying the Sources of Treatment Effects from Experimentally Estimated Production Technologies with Unmeasured and Mismeasured Inputs | Becker-Friedman Institute Research Respository
    Analyses Identifying the Sources of Treatment Effects from Experimentally Estimated Production Technologies with Unmeasured and Mismeasured Inputs This paper presents an econometric mediation analysis It considers identification of production functions and the sources of output effects treatment effects from experimental interventions when some inputs are mismeasured and others are entirely omitted Authors James J Heckman University of Chicago Rodrigo Pinto The University of Chicago Publication Date August 2013 BFI Initiative

    Original URL path: http://econresearch.uchicago.edu/content/econometric-mediation-analyses-identifying-sources-treatment-effects-experimentally (2015-06-03)
    Open archived version from archive

  • Financial Obstacles and Inter-Regional Flow of Funds | Becker-Friedman Institute Research Respository
    URL in your browser s location bar to begin with https instead of http Please contact site admin for help if this error continues User login CNetID or Username Password Request new password Log in Financial Obstacles and Inter Regional Flow of Funds Motivated by evidence from the micro data that the type of financial frictions faced by individuals varies across regions within countries we develop a general equilibrium framework that encompasses different micro financial underpinnings We use it to compare the implications of two concrete frictions limited commitment and moral hazard and argue that these have potentially very different implications at both the macro and the micro level Aggregate productivity is depressed in the two regimes but for completely different reasons under limited commitment capital is misallocated across heterogeneous firms In contrast under moral hazard productivity is endogenously lower at the firm level because entrepreneurs exert suboptimal effort Occupational choice productivity and firm size distribution income and wealth inequality and the speed of individual transitions also differ markedly We also present an economy with different frictions in different regions Such mixture regimes turn out to be different from simple convex combinations of the pure moral hazard and pure limited

    Original URL path: http://econresearch.uchicago.edu/content/financial-obstacles-and-inter-regional-flow-funds (2015-06-03)
    Open archived version from archive

  • Interpreting Time Horizon Effects in Inter-Temporal Choice | Becker-Friedman Institute Research Respository
    account logins using a secure protocol such as HTTPS You can switch to HTTPS by trying to view this page again after changing the URL in your browser s location bar to begin with https instead of http Please contact site admin for help if this error continues User login CNetID or Username Password Request new password Log in Interpreting Time Horizon Effects in Inter Temporal Choice We compare different designs that have been used to test for an impact of time horizon on discounting using real incentives and two representative data sets With the most commonly used type of design we replicate the typical finding of declining hyperbolic discounting but with other designs find constant or increasing discounting As a whole the data are not consistent with any of these usual candidate discounting assumptions and they also imply a violation of transitivity The results have implications for interpreting previous evidence and pose an important puzzle for understanding inter temporal choice Authors Thomas Dohmen Universität Bonn Armin Falk Universität Bonn David Huffman Swarthmore College Uwe Sunde University of St Gallen Publication Date August 2013 JEL Classification D01 Microeconomic Behavior Underlying Principles D90 Intertemporal Choice and Growth General D30 Distribution General

    Original URL path: http://econresearch.uchicago.edu/content/interpreting-time-horizon-effects-inter-temporal-choice (2015-06-03)
    Open archived version from archive

  • The Welfare Policy Dilemma of a Negative Income Tax System: Normative Approach | Becker-Friedman Institute Research Respository
    admin for help if this error continues User login CNetID or Username Password Request new password Log in The Welfare Policy Dilemma of a Negative Income Tax System Normative Approach The question of whether a welfare policy is just and fair to all is a subject to debates To find a solution we address a pertinent issue of Negative Income Tax NIT System affected by three key actors partaking in welfare related negotiations The first actor negotiator advocates in the role of social organizations for citizens legal and moral rights for the delivery of primary needs The second negotiator in the role of public organizations negotiates in response to non primary but vital wants for the delivery of public goods and services The third the external player who represents taxpayers prefers personal consumption to moral and social understanding The goal of taxpayers is to reduce through voting taxpayers liabilities deposited as individual income taxes in the joint account of actors negotiators The threat emanating from political and electoral maneuvering of taxpayers may place the negotiations at risk of collapse When the collapse is looming closer the negotiations may breakdown prematurely The rules and regulations of the bargaining game and the

    Original URL path: http://econresearch.uchicago.edu/content/welfare-policy-dilemma-negative-income-tax-system-normative-approach (2015-06-03)
    Open archived version from archive



  •