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Robust Estimation of Linear Fixed Effects Panel Data Models with an Application to the Exporter Productivity Premium

Verardi, Vincenzo; Wagner, Joachim - Institute for the Study of Labor (IZA) - 2010

the sample. These extreme observations, or outliers, often have a large impact on the results of statistical analyses … this, the detection of outliers and their appropriate treatment is often dealt with in a rather sloppy manner. One reason … the presence of outliers. Our paper intents to improve on this situation by presenting a highly robust method for …

Persistent link: https://www.econbiz.de/10008506086

Productivity Premia for German Manufacturing Firms Exporting to the Euro-Area and Beyond: First Evidence from Robust Fixed Effects Estimations

Verardi, Vincenzo; Wagner, Joachim - Institute for the Study of Labor (IZA) - 2010

observations, or outliers. The paper shows that estimates of the exporter productivity premium by destination are driven by a small … share of outliers. Using a "clean" sample without outliers the estimated productivity premium of firms that export to the …

Persistent link: https://www.econbiz.de/10008568260

The Exporter Productivity Premium along the Productivity Distribution: First Evidence from a Quantile Regression Approach for Fixed Effects Panel Data Models

Powell, David; Wagner, Joachim - Institute for the Study of Labor (IZA) - 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/10008531752

Average Wage, Qualification of the Workforce and Export Performance in German Enterprises: Evidence from KombiFiD Data

Wagner, Joachim - Institute for the Study of Labor (IZA) - 2012

Empirical investigations with enterprise level data from official statistics often use the average wage as a proxy variable for the qualification of the workforce, mostly due to the lack of detailed information on the qualification of the employees. This paper uses unique newly available data...

Persistent link: https://www.econbiz.de/10009416940

Using the Helmert-Transformation to Reduce Dimensionality in a Mixed Model: Application to a Wage Equation with Worker and Firm Heterogeneity

Nilsen, Øivind Anti; Raknerud, Arvid; Skjerpen, Terje - Institute for the Study of Labor (IZA) - 2011

A model for matched data with two types of unobserved heterogeneity is considered – one related to the observation unit, the other to units to which the observation units are matched. One or both of the unobserved components are assumed to be random. This mixed model allows identification of...

Persistent link: https://www.econbiz.de/10009216761

Survey Design and the Determinants of Subjective Wellbeing: An Experimental Analysis

Holford, Angus J.; Pudney, Stephen - Institute for the Study of Labor (IZA) - 2015

We analyse the results of experiments on questionnaire design and interview mode in the first four waves (2008-11) of the UK Understanding Society Innovation Panel survey. The randomised experiments relate to job, health, income, leisure and overall life-satisfaction questions and vary the...

Persistent link: https://www.econbiz.de/10011125861

Survey Non-Response and Unemployment Duration

den Berg, Gerard J. van; Lindeboom, Maarten; Dolton, … - Institute for the Study of Labor (IZA) - 2004

Social surveys are often used to estimate unemployment duration distributions. Survey nonresponse may then cause a bias. We study this using a unique dataset that combines survey information of individual workers with administrative records of the same workers. The latter provide information on...

Persistent link: https://www.econbiz.de/10005566349

Item Non-Response and Imputation of Annual Labor Income in Panel Surveys from a Cross-National Perspective

Frick, Joachim R.; Grabka, Markus M. - Institute for the Study of Labor (IZA) - 2007

Using data on annual individual labor income from three representative panel datasets (German SOEP, British BHPS, Australian HILDA) we investigate a) the selectivity of item non-response (INR) and b) the impact of imputation as a prominent post-survey means to cope with this type of measurement...

Persistent link: https://www.econbiz.de/10005822762

Growth, Inequality and Poverty Relationships

Heshmati, Almas - Institute for the Study of Labor (IZA) - 2004

This paper examines the causal relationship between inequality and a number of macroeconomic variables frequently found in the inequality and growth literature. These include growth, openness, wages, and liberalisation. We review the existing cross-country empirical evidence on the effects of...

Persistent link: https://www.econbiz.de/10005761854

From Estimation Results to Stylized Facts: Twelve Recommendations for Empirical Research in International Activities of Heterogeneous Firms

Wagner, Joachim - Institute for the Study of Labor (IZA) - 2010

. comparisons of distributions; extremely different firms, or outliers; unobserved heterogeneity; simultaneous occurrence of … differences across quantiles, outliers, and unobserved heterogeneity; heterogeneous effects of international firm activities on …

Persistent link: https://www.econbiz.de/10008564712

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