Narrow search
Showing 1 - 10 of 266
Cover Image
Practical Significance, Meta-Analysis and the Credibility of Economics
Stanley, Tom D.; Doucouliagos, Chris - 2019
, increasing statistical power, reducing bias and enhancing credibility, meta-analysis is widely regarded as 'best evidence …
Persistent link: https://www.econbiz.de/10012059188
Cover Image
Match bias from earnings imputation in the current population survey: the case of imperfect matching
Bollinger, Christopher R.; Hirsch, Barry T. - 2005
This paper examines alternative forms of match bias arising from earnings imputation. Wage equation parameters are … imputation match criteria (e.g., union status) are severely biased. Related forms of match bias arise with respect to attributes … used as match criteria, but matched imperfectly. For example, an imperfect match on schooling creates bias that flattens …
Persistent link: https://www.econbiz.de/10010267423
Cover Image
Team heterogeneity in startups and its development over time
Kaiser, Ulrich; Müller, Bettina - 2013
We investigate the workforce heterogeneity of startups with respect to education, age and wages. Our explorative study uses data on the population of 1,614 Danish firms founded in 1998. We track these firms until 2001 which enables us to analyze changes in workforce composition over time. Such a...
Persistent link: https://www.econbiz.de/10010293184
Cover Image
Simple Tests for Selection Bias: Learning More from Instrumental Variables
Black, Dan A.; Joo, Joonhwi; LaLonde, Robert J.; Smith, … - 2015
We provide simple tests for selection on unobserved variables in the Vytlacil-Imbens-Angrist framework for Local Average Treatment Effects. The tests allow researchers not only to test for selection on either or both of the treated and untreated outcomes, but also to assess the magnitude of the...
Persistent link: https://www.econbiz.de/10011345405
Cover Image
Causal Analysis after Haavelmo
Heckman, James J.; Pinto, Rodrigo - 2013
Haavelmo's seminal 1943 paper is the first rigorous treatment of causality. In it, he distinguished the definition of causal parameters from their identification. He showed that causal parameters are de fined using hypothetical models that assign variation to some of the inputs determining...
Persistent link: https://www.econbiz.de/10010329149
Cover Image
The Own-Wage Elasticity of Labor Demand: A Meta-Regression Analysis
Lichter, Andreas; Peichl, Andreas; Siegloch, Sebastian - 2014
evidence for the presence of publication selection bias, as estimates of the own-wage elasticity of labor demand are upwardly …
Persistent link: https://www.econbiz.de/10010333281
Cover Image
The Devil is in the Tails: Regression Discontinuity Design with Measurement Error in the Assignment Variable
Pei, Zhuan; Shen, Yi - 2016
Identification in a regression discontinuity (RD) design hinges on the discontinuity in the probability of treatment when a covariate (assignment variable) exceeds a known threshold. If the assignment variable is measured with error, however, the discontinuity in the first stage relationship...
Persistent link: https://www.econbiz.de/10011584635
Cover Image
Let the Data Speak? On the Importance of Theory-Based Instrumental Variable Estimations
Grossmann, Volker; Osikominu, Aderonke - 2019
In absence of randomized controlled experiments, identification is often aimed via instrumental variable (IV) strategies, typically two-stage least squares estimations. According to Bayes' rule, however, under a low ex ante probability that a hypothesis is true (e.g. that an excluded instrument...
Persistent link: https://www.econbiz.de/10011984640
Cover Image
Modelling the Dynamic Effects of Elective Hospital Admissions on Emergency Levels in England
Jiménez-Martín, Sergi; Nicodemo, Catia; Redding, Stuart - 2019
In England as elsewhere, policy makers are trying to reduce the pressure on costs due to rising hospital admissions by encouraging GPs to refer fewer patients to hospital specialists. This could have an impact on elective treatment levels, particularly procedures for conditions which are not...
Persistent link: https://www.econbiz.de/10012059070
Cover Image
Zooming the Ins and Outs of the U.S. Unemployment with a Wavelet Lens
Portugal, Pedro; Rua, António - 2018
To better understand unemployment dynamics it is key to assess the role played by job creation and job destruction. Although the U.S. case has been studied extensively, the importance of job finding and employment exit rates to unemployment variability remains unsettled. The aim of this paper is...
Persistent link: https://www.econbiz.de/10011873563