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Testing the correlated random coefficient model

Heckman, James J.; Schmierer, Daniel; Urzua, Sergio - 2009

The recent literature on instrumental variables (IV) features models in which agents sort into treatment status on the basis of gains from treatment as well as on baseline-pretreatment levels. Components of the gains known to the agents and acted on by them may not be known by the observing...

Persistent link: https://www.econbiz.de/10003907131

Estimating the technology of cognitive and noncognitive skill formation

Cunha, Flávio; Heckman, James J.; Schennach, Susanne M. - 2010

This paper formulates and estimates multistage production functions for children's cognitive and noncognitive skills. Skills are determined by parental environments and investments at different stages of childhood. We estimate the elasticity of substitution between investments in one period and...

Persistent link: https://www.econbiz.de/10003934523

Dealing with imperfect randomization : inference for the Highscope Perry Preschool Program

Heckman, James J.; Pinto, Rodrigo; Shaikh, Azeem M. - 2023

This paper considers the problem of making inferences about the effects of a program on multiple outcomes when the assignment of treatment status is imperfectly randomized. By imperfect randomization we mean that treatment status is reassigned after an initial randomization on the basis of...

Persistent link: https://www.econbiz.de/10014444383

Inference with imperfect randomization : the case of the Perry Preschool program

Heckman, James J.; Pinto, Rodrigo; Shaikh, Azeem M.; … - 2011

Persistent link: https://www.econbiz.de/10009235526

Higher productivity in importing German manufacturing firms : self-selection, learning from importing, or both?

Vogel, Alexander (contributor); Wagner, Joachim (contributor) - 2008

This paper uses a newly available comprehensive panel data set for manufacturing enterprises from 2001 to 2005 to document the first empirical results on the relationship between imports and productivity for Germany, a leading actor on the world market for goods. Furthermore, for the first time...

Persistent link: https://www.econbiz.de/10003779041

Exports and profitability : first evidence for German manufacturing firms

Fryges, Helmut (contributor); Wagner, Joachim (contributor) - 2008

Using unique recently released nationally representative high-quality longitudinal data at the enterprise level for Germany, this paper presents the first comprehensive evidence on the relationship between exports and profitability. It documents that the positive profitability differential of...

Persistent link: https://www.econbiz.de/10003771833

Works councils, labor productivity and plant heterogeneity : evidence from quantile regressions

Wagner, Joachim; Addison, John T.; Schnabel, Claus; … - 2004 - [Elektronische Ressource]

Using quantile regressions and a rich cross section data set for German manufacturing plants, this paper reports that the impact of works councils on labor productivity varies along the conditional distribution of value added per employee. It emerges that the positive and statistically...

Persistent link: https://www.econbiz.de/10002504494

The rate of return to the High/Scope Perry Preschool Program

Heckman, James J.; Moon, Seong Hyeok; Pinto, Rodrigo; … - 2009

This paper estimates the rate of return to the High/Scope Perry Preschool Program, an early intervention program targeted toward disadvantaged African-American youth. Estimates of the rate of return to the Perry program are widely cited to support the claim of substantial economic benefits from...

Persistent link: https://www.econbiz.de/10003909167

Productivity premia for German manufacturing firms exporting to the Euro-area and beyond : first evidence from robust fixed effects estimations

Verardi, Vincenzo; Wagner, Joachim - 2010

estimates of the productivity premium of German firms exporting to the Euro-zone and beyond, controlling for unobserved time … invariant firm specific effects, and tests for self-selection of more productive firms into exporting beyond the Euro-zone. (3 … Euro-zone only is no longer much smaller that the premium of firms that export beyond the Euro-zone, too, and the premium …

Persistent link: https://www.econbiz.de/10003968468

The exporter productivity premium along the productivity distribution : first evidence from a quantile regression approach for fixed effects data models

Powell, David; Wagner, Joachim - 2010

An emerging literature on international activities of heterogeneous firms documents that exporting firms are more productive than firms that only sell on the national market. This positive exporter productivity premium shows up in a large number of empirical studies after controlling for...

Persistent link: https://www.econbiz.de/10008796733