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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

The causal effect of wrong-hand drive vehicles on road safety

Roesel, Felix 20 October 2017 (has links) (PDF)
Left-hand drive (LHD) vehicles share higher road accident risks under left-hand traffic because of blind spot areas. Due to low import prices, the number of wrong-hand drive vehicles skyrockets in emerging countries like Georgia, Kyrgyzstan and Russia. I identify the causal effect of wrong-hand drive vehicles on road safety employing a new “backward version” of the synthetic control method. Sweden switched from left-hand to right-hand traffic in 1967. Before 1967, however, almost all Swedish vehicles were LHD for reasons of international trade and Swedish customer demand. I match on accident figures in the period after 1967, when both Sweden and other European countries drove on the right and used LHD vehicles. Results show that right-hand traffic decreased road fatality, injury and accident risk in Sweden by approximately 30 percent. An earlier switch would have saved more than 4,000 lives between 1953 and 1966.
2

The causal effect of wrong-hand drive vehicles on road safety

Roesel, Felix 20 October 2017 (has links)
Left-hand drive (LHD) vehicles share higher road accident risks under left-hand traffic because of blind spot areas. Due to low import prices, the number of wrong-hand drive vehicles skyrockets in emerging countries like Georgia, Kyrgyzstan and Russia. I identify the causal effect of wrong-hand drive vehicles on road safety employing a new “backward version” of the synthetic control method. Sweden switched from left-hand to right-hand traffic in 1967. Before 1967, however, almost all Swedish vehicles were LHD for reasons of international trade and Swedish customer demand. I match on accident figures in the period after 1967, when both Sweden and other European countries drove on the right and used LHD vehicles. Results show that right-hand traffic decreased road fatality, injury and accident risk in Sweden by approximately 30 percent. An earlier switch would have saved more than 4,000 lives between 1953 and 1966.
3

Essays on the impact of economic shocks in local labor markets

Moore, Jan Peter aus dem 02 April 2013 (has links)
Diese Dissertation besteht aus vier Aufsätzen, die einen Beitrag zur Literatur über die empirische Analyse von lokalen Arbeitsmärkten leisten. Der erste Aufsatz nutzt den Abzug eines Großteils der US-Stationierungsstreitkräfte in Deutschland seit 1990 als ein natürliches Experiment, das die Identifikation von kausalen Effekten von Nachfrageschocks in lokalen Arbeitsmärkten ermöglicht. Als Datengrundlage dient ein neu aufbereiteter Datensatz zu den regionalen Veränderungen der Personalstärke der U.S. Stützpunkte. Die empirischen Ergebnisse belegen, dass der Abzug zu einem signifikanten Rückgang der Beschäftigung in der lokalen Privatwirtschaft und einem nachfolgenden Anstieg in der lokalen Arbeitslosenrate führte. Im Gegensatz dazu weisen die Ergebnisse keine Evidenz für signifikante Anpassungen in den lokalen Löhnen oder Wanderungssalden auf. Der zweite Aufsatz vertieft die Frage der lokalen Lohnrigiditäten angesichts des Nachfrageschocks. Der Einfluss von zwei Institutionen wird als mögliche Quelle von heterogenen Lohnanpassungen in lokalen Arbeitsmärkten identifiziert. Die empirischen Ergebnisse zeigen, dass der Einfluss der beiden Institutionen isoliert mit keinen heterogenen Lohnanpassungen verbunden ist, aber das Zusammenwirken beider Dimensionen verbunden ist mit differenziellen Lohnreduktionen. Der dritte Aufsatz erweitert die Analyse der Folgen des amerikanischen Truppenabzugs um die Frage nach der Entwicklung der lokalen Kriminalitätsrate. Die Ergebnisse zeigen, dass der Truppenabzug mit einem Rückgang der Kriminalität insbesondere von Drogen- und Sexualstraftaten verbunden ist. Der vierte Aufsatz untersucht die langfristige Entwicklung der Zeitarbeit in den regionalen Arbeitsmärkten in Deutschland seit 1979. Dabei zeigt sich, dass die anfängliche Verteilung der Beschäftigungsanteile für manuelle Nicht-Routine- und Routine-Tätigkeiten eine starke Vorhersagekraft für das unterschiedliche regionale Beschäftigungswachstum von Zeitarbeit in Deutschland besitzt. / This thesis consists of four essays that contribute to the empirical analysis of local labor markets. The first essay exploits the massive withdrawal of U.S. Armed Forces in the aftermath of the German Reunification as a natural experiment that enables the identification of the causal impact of local labor demand shocks. It introduces a novel dataset that details the evolution of the U.S. manpower levels at the disaggregated regional level and thereby enables the measurement how U.S. base closures affected the demand for local non-tradable goods and services. The results from the empirical analyses suggest that the drop in local labor demand caused a significant loss of private sector employment and generated a subsequent rise in local unemployment rates. In contrast, wages and migration patterns do not exhibit any significant responses. The second essay further explores the rigidity of wages in local labor markets in response to the U.S. base closures. The presence of two types of institutions (i.e. works councils and the German Trade and Crafts Code) and their interplay are characterized as potential sources of wage heterogeneities. While in isolation these two institutions do not seem to alter the pattern of insignificant wage adjustments, their interaction is found to introduce a channel for small downward wage adjustments. The third essay is concerned with the change in local crime rates in response to the U.S. presence and withdrawal. The empirical findings suggest that the drawdown of the U.S. military presence can be related to large and significant drops in the local rate of drug and sex offenses. The fourth essay provides an empirical analysis of the diverging patterns of employment in temporary help services across labor markets in Germany over the last 30 years. The differential growth pattern both at the level of occupations and across regional labor markets are found to be related to the initial intensity of routine and non-routine manual tasks.

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