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Are the self-employed really jacks-of-all-trades? Testing the assumptions and implications of Lazear's theory of entrepreneurship with German data

Using a large representative German data set and various concepts of self-employment, this paper tests the 'jack-of-all-trades' view of entrepreneurship by Lazear (AER 2004). Consistent with its theoretical assumptions we find that self-employed individuals perform more tasks and that their work requires more skills than that of paid employees. In contrast to Lazear's assumptions, however, self-employed individuals do not just need more basic but also more expert skills than employees. Our results also provide only very limited support for the idea that human capital investment patterns differ between those who become self-employed and those ending up in paid employment. -- Unter Verwendung eines großen, repräsentativen Datensatzes für Deutschland und verschiedener Abgrenzungen der Selbständigkeit überprüft diese Arbeit die 'jack-of-all-trades'-Sicht des Unternehmertums von Lazear (AER 2004). In Übereinstimmung mit ihren theoretischen Annahmen finden wir, dass Selbständige mehr verschiedene Tätigkeiten ausüben und Kenntnisse aus mehr verschiedenen Gebieten benötigen als nicht-selbständige Arbeitnehmer. Im Gegensatz zu Lazear's Annahmen benötigen Selbständige allerdings nicht nur mehr Grundkenntnisse sondern auch mehr Fachkenntnisse als Nicht-Selbständige. Unsere Ergebnisse liefern zudem nur wenig Unterstützung für die Behauptung, dass sich die Muster der Humankapitalaneignung zwischen Selbstständigen und abhängig beschäftigten Arbeitnehmern sichtbar unterscheiden.entrepreneurship,self-employed,Germany

Are the self-employed really jacks-of-all-trades? Testing the assumptions and implications of Lazear's theory of entrepreneurship with German data

Using a large representative German data set and various concepts of self-employment, this paper tests the jack-of-all-trades view of entrepreneurship by Lazear (AER 2004). Consistent with its theoretical assumptions we find that self-employed individuals perform more tasks and that their work requires more skills than that of paid employees. In contrast to Lazear's assumptions, however, self-employed individuals do not just need more basic but also more expert skills than employees. Our results also provide only very limited support for the idea that human capital investment patterns differ between those who become self-employed and those ending up in paid employment. -- Unter Verwendung eines großen, repräsentativen Datensatzes für Deutschland und verschiedener Abgrenzungen der Selbständigkeit überprüft diese Arbeit die jack-of-all-trades-Sicht des Unternehmertums von Lazear (AER 2004). In Übereinstimmung mit ihren theoretischen Annahmen finden wir, dass Selbständige mehr verschiedene Tätigkeiten ausüben und Kenntnisse aus mehr verschiedenen Gebieten benötigen als nicht-selbständige Arbeitnehmer. Im Gegensatz zu Lazear's Annahmen benötigen Selbständige allerdings nicht nur mehr Grundkenntnisse sondern auch mehr Fachkenntnisse als Nicht-Selbständige. Unsere Ergebnisse liefern zudem nur wenig Unterstützung für die Behauptung, dass sich die Muster der Humankapitalaneignung zwischen Selbstständigen und abhängig beschäftigten Arbeitnehmern sichtbar unterscheiden.entrepreneurship,self-employed,Germany

What explains the gender earnings gap in self-employment? A decomposition analysis with German data

Using a large data set for Germany, we show that both the raw and the unexplained gender earnings gap are higher in self-employment than in paid employment. Applying an Oaxaca-Blinder decomposition, more than a quarter of the difference in monthly self-employment earnings can be traced back to women working fewer hours than men. In contrast variables like family background, working time flexibility and career aspirations do not seem to contribute much to the gender earnings gap, suggesting that self-employed women do not earn less because they are seeking work-family balance rather than profits. Differences in human capital endowments account for another 13 percent of the gap but segregation does not contribute to the gender earnings gap in a robust way.Mit einem großen Datensatz für Deutschland zeigen wir, dass sowohl der gesamte geschlechtsspezifische Verdienstunterschied als auch dessen unerklärter Teil bei Selbständigen größer ausfallen als bei abhängig Beschäftigten. Gemäß einer Oaxaca-Blinder-Zerlegung ist über ein Viertel des Unterschieds im Monatsverdienst von Selbständigen darauf zurückzuführen, dass Frauen kürzere Arbeitszeiten haben als Männer. Dagegen scheinen Variablen wie Familienhintergrund, Arbeitszeitflexibilität und Karriereaspiration nicht substanziell zum Geschlechter-Verdienstdifferenzial beizutragen. Dies legt nahe, dass selbständige Frauen nicht deshalb weniger verdienen, weil sie eher an der Vereinbarkeit von Arbeit und Familie und weniger an Gewinnerzielung interessiert sind. Unterschiede in der Humankapitalausstattung erklären weitere 13 Prozent des Differenzials, doch Segregation spielt keine eindeutige Rolle

Coming to work while sick: An economic theory of presenteeism with an application to German data

Presenteeism, i.e. attending work while sick, is widespread and associated with significant costs. Still, economic analyses of this phenomenon are rare. In a theoretical model, we show that presenteeism arises due to differences between workers in the disutility from workplace attendance. As these differences are unobservable by employers, they set wages that incentivise sick workers to attend work. Using a large representative German data set, we test several hypotheses derived from our model. In line with our predictions, we find that stressful working conditions and bad health status are positively related to presenteeism. Better dismissal protection, captured by higher tenure, is associated with slightly fewer presenteeism days, whereas the role of productivity and skills is inconclusive

Can working conditions explain the return-to-entrepreneurship puzzle?

Most self-employed would apparently earn higher earnings if they were working in paid employment. One explanation for this 'return-to-entrepreneur-ship puzzle' could be that entrepreneurship entails substantial non-monetary bene-fits, such as autonomy, flexibility, and task variety. Utilizing German data and a de-composition analysis, this study examines the contribution of such working condi-tions to the observed earnings differential between self-employment and paid em-ployment. The results imply that working conditions differences do not contribute to resolve the return-to-entrepreneurship puzzle. Rather, (mis-)measurement of earnings seems to be an issue.Die meisten Selbständigen könnten als abhängig Beschäf-tigte anscheinend höhere Einkünfte erzielen. Möglicherweise arbeiten sie dennoch weiterhin als Selbständige, weil die Selbständigkeit nicht-monetäre Vorteile, wie etwa mehr Autonomie, Flexibilität und Abwechslung, mit sich bringt. Unter Verwendung eines Datensatzes deutscher Erwerbstätiger und mittels einer Zerlegungsanalyse untersucht diese Studie, inwiefern Unterschiede in solchen Arbeitsbedingungen die Unterschiede in den Einkünften zwischen Selbständigen und abhängig Beschäftigten erklären könnten. Die Ergebnisse deuten darauf hin, dass Unterschiede in den Arbeitsbedingungen nicht dazu beitragen, die (zu) niedrigen Einkünfte der Selbstän-digen zu erklären. Vielmehr scheinen Schwierigkeiten bei der Messung der Einkünfte eine Rolle zu spielen

Coming to Work While Sick: An Economic Theory of Presenteeism with an Application to German Data

Presenteeism, i.e. attending work while sick, is widespread and associated with significant costs. Still, economic analyses of this phenomenon are rare. In a theoretical model, we show that presenteeism arises due to differences between workers in (health-related) disutility from workplace attendance. As these differences are unobservable by employers, they set wages that incentivise sick workers to attend work. Using a large representative German data set, we test several hypotheses derived from our model. In line with our predictions, we find that bad health status and stressful working conditions are positively related to presenteeism. Better dismissal protection, captured by higher tenure, is associated with slightly fewer presenteeism days, whereas the role of productivity and skills is inconclusive

Coming to work while sick: An economic theory of presenteeism with an application to German data

Presenteeism, i.e. attending work while sick, is widespread and associated with significant costs. Still, economic analyses of this phenomenon are rare. In a theoretical model, we show that presenteeism arises due to differences between workers in (healthrelated) disutility from workplace attendance. As these differences are unobservable by employers, they set wages that incentivise sick workers to attend work. Using a large representative German data set, we test several hypotheses derived from our model. In line with our predictions, we find that bad health status and stressful working conditions are positively related to presenteeism. Better dismissal protection, captured by higher tenure, is associated with slightly fewer presenteeism days, whereas the role of productivity and skills is inconclusive

Why is there a gender earnings gap in self-employment? A decomposition analysis with German data

Using a large data set for Germany, we show that both the raw and the unexplained gender earnings gap are higher in self-employment than in paid employment. Applying an Oaxaca-Blinder decomposition, about one quarter to one third of the difference in monthly self-employment earnings can be traced back to women working fewer hours than men whereas there are no robust segregation effects. Working time flexibility and career aspirations do not seem to contribute much to the gender earnings gap, whereas family background plays a certain role as it affects the earnings of self-employed men and women quite differently

What explains the gender earnings gap in self-employment? A decomposition analysis with German data

Using a large data set for Germany, we show that both the raw and the unexplained gender earnings gap are higher in self-employment than in paid employment. Applying an Oaxaca-Blinder decomposition, more than a quarter of the difference in monthly self-employment earnings can be traced back to women working fewer hours than men. In contrast variables like family background, working time flexibility and career aspirations do not seem to contribute much to the gender earnings gap, suggesting that self-employed women do not earn less because they are seeking work-family balance rather than profits. Differences in human capital endowments account for another 13 percent of the gap but segregation does not contribute to the gender earnings gap in a robust way