Diese Dissertation umfasst drei Aufsätze, von denen sich die ersten beiden mit dem Phänomen der beruflichen Mobilität von Arbeitnehmern im westdeutschen Arbeitsmarkt befassen. Der erste Aufsatz untersucht für Absolventen einer dualen Berufsausbildung die kausalen Lohneffekte von Mobilität über Firmen und Berufe hinweg. Die Instrumentenvariablenschätzungen, welche exogene Variation in regionalen Arbeitsmarktcharakteristika ausnutzen, zeigen, dass Berufswechsel innerhalb des Ausbildungsbetriebs einen Karrierefortschritt darstellen. Bei Jobwechseln dominiert der Verlust von firmenspezifischem Humankapital. Allerdings nimmt der Lohnverlust nicht weiter zu, wenn zusätzlich zur Firma auch der Beruf gewechselt wird. Angesichts dieser Ergebnisse dokumentiert der zweite Aufsatz Muster von beruflicher Mobilität in Westdeutschland über den Zeitraum 1982--2008 innerhalb von und zwischen Firmen. Die Häufigkeit von beruflicher Mobilität hat seit 1982 zwischen Firmen signifikant zugenommen und innerhalb von Firmen signifikant abgenommen. Die Analyse betrachtet zudem mögliche Erklärungsansätze für diese Entwicklungen, wie zum Beispiel den demografischen Wandel oder den Zusammenhang zwischen beruflicher Mobilität und Arbeitslosigkeit. Der dritte Aufsatz untersucht den Zusammenhang zwischen Produktmarktderegulierung und Arbeitsmarktergebnissen. Die Reform der deutschen Handwerksordnung von 2003 wird als natürliches Experiment genutzt, um mögliche Einflüsse der Abschaffung von Markteintrittsbarrieren auf selbstständige und abhängige Beschäftigung zu untersuchen. Da Zweifel an der Gültigkeit der identifizierenden Annahmen aufkommen, können die Schätzergebnisse nicht kausal interpretiert werden. Dennoch legen die Ergebnisse zumindest in Teilen nahe, dass der in der Literatur bereits dokumentierte positive Effekt auf selbstständige Beschäftigung plausibel ist, wohingegen die Reform vermutlich keinen Anstieg der abhängigen Beschäftigung in den deregulierten Berufen zur Folge hatte. / This thesis comprises three essays, out of which the first two study the phenomenon of worker mobility across occupations in the West German labor market. The first essay studies the causal wage effects of mobility across firms and occupations among graduates from apprenticeship training. Exploiting variation in regional labor market characteristics the instrumental variables estimations indicate that occupation switches within the training firm involve a career progression. For job switches the loss of firm-specific human capital seems to dominate. However, the wage loss does not grow when an occupation switch occurs simultaneously. In light of these results, the second essay in this thesis studies patterns of occupational mobility in West Germany over the period 1982--2008 separately within and across firms. Most importantly, occupational mobility rates across firms have significantly increased since the early 1980s, while within-firm occupational mobility rates have significantly decreased. The essay also assesses potential explanations for these developments, such as demographic change or the relationship between occupational mobility and unemployment. The third essay in this thesis studies the relationship between product market deregulation and labor market outcomes. It exploits the 2003 reform of the German Crafts Code as a natural experiment to study how the abolishment of barriers to firm entry may affect self-employment and dependent employment. Since there are doubts regarding the validity of the identifying assumptions, the results cannot be interpreted causally. Nevertheless, the analysis at least partially corroborates the evidence for a positive reform effect on self-employment documented elsewhere in the literature, while the reform seems not to have had a positive effect on dependent employment in the deregulated crafts occupations.

Text in Afrikaans / Summaries in English and Afrikaans / This study aims to investigate the relation between a crane operator in a slab handlingarea's experience of his/her work environment and occupational health. A study of the literature leads one to the conclusion that the nature of crane operators' work environment may cause health problems. According to the literature crane operators are high risk cases regarding musculoskeletal disorders. The empirical study affirms that there are risk factors present in the crane operator's work environment, which may influence his/her occupational health. It is statistically proven that there is a meaningful difference between crane operators with a negative experience of the work environment and crane operators with a positive experience of the work environment, and the amount of illnesses experienced by crane operators as well as their general health. Recommendations are made regarding training, adjustability and flexibility of the work station, job rotation, job expansion and enrichment, and social contact. / Die doel van die studie is om die verband tussen 'n kraanoperateur in 'n platblokhanteringsarea se ervaring van sy/haar werksomgewing en beroepsgesondheid te ondersoek. Die literatuurstudie lei tot die gevolgtrekking dat die aard van kraanoperateurs se werksomgewing aanleiding kan gee tot gesondheidsprobleme. Volgens die literatuur is kraanoperateurs hoerisikogevalle ten opsigte van spierskeletstelselbeserings. Die empiriese studie bevestig dat daar risikofaktore voorkom in die kraanoperateur se werksomgewing wat sy/haar beroepsgesondheid kan be"invloed. Statisties is bewys dat daar 'n betekenisvolle verskil is tussen kraanoperateurs met 'n negatiewe ervaring van die werksomgewing en kraanoperateurs met 'n positiewe ervaring van die werksomgewing en die hoeveelheid siektetoestande wat kraanoperateurs ervaar, en die algemene gesondheid van kraanoperateurs. Aanbevelings om risikofaktore te beheer word gemaak ten opsigte van opleiding, verstelbaarheid en buigbaarheid van die werkstasie, posrotasie, posverbreding en - verryking, en sosiale kontak. / Industrial Psychology / M. Com (Industrial Psychology)

侯志瑾. / 論文(哲學博士)--香港中文大學, 2002. / 參考文獻 (p. 135-147). / 中英文摘要. / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. Ann Arbor, MI : ProQuest Information and Learning Company, [200-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Mode of access: World Wide Web. / Hou Zhijin. / Zhong Ying wen zhai yao. / Lun wen (zhe xue bo shi)--Xianggang zhong wen da xue, 2002. / Can kao wen xian (p. 135-147).

Thesis (Ph.D.) - James Cook University, 2004. / Thesis submitted by Sally Marie Babidge, BA (Hons) UWA June 2004, for the Degree of Doctor of Philosophy in the School of Anthropology, Archaeology and Sociology, James Cook University. Bibliography: leaves 283-303.

Text in Afrikaans / Summaries in English and Afrikaans / This study aims to investigate the relation between a crane operator in a slab handlingarea's experience of his/her work environment and occupational health. A study of the literature leads one to the conclusion that the nature of crane operators' work environment may cause health problems. According to the literature crane operators are high risk cases regarding musculoskeletal disorders. The empirical study affirms that there are risk factors present in the crane operator's work environment, which may influence his/her occupational health. It is statistically proven that there is a meaningful difference between crane operators with a negative experience of the work environment and crane operators with a positive experience of the work environment, and the amount of illnesses experienced by crane operators as well as their general health. Recommendations are made regarding training, adjustability and flexibility of the work station, job rotation, job expansion and enrichment, and social contact. / Die doel van die studie is om die verband tussen 'n kraanoperateur in 'n platblokhanteringsarea se ervaring van sy/haar werksomgewing en beroepsgesondheid te ondersoek. Die literatuurstudie lei tot die gevolgtrekking dat die aard van kraanoperateurs se werksomgewing aanleiding kan gee tot gesondheidsprobleme. Volgens die literatuur is kraanoperateurs hoerisikogevalle ten opsigte van spierskeletstelselbeserings. Die empiriese studie bevestig dat daar risikofaktore voorkom in die kraanoperateur se werksomgewing wat sy/haar beroepsgesondheid kan be"invloed. Statisties is bewys dat daar 'n betekenisvolle verskil is tussen kraanoperateurs met 'n negatiewe ervaring van die werksomgewing en kraanoperateurs met 'n positiewe ervaring van die werksomgewing en die hoeveelheid siektetoestande wat kraanoperateurs ervaar, en die algemene gesondheid van kraanoperateurs. Aanbevelings om risikofaktore te beheer word gemaak ten opsigte van opleiding, verstelbaarheid en buigbaarheid van die werkstasie, posrotasie, posverbreding en - verryking, en sosiale kontak. / Industrial Psychology / M. Com (Industrial Psychology)

Indiana University-Purdue University Indianapolis (IUPUI) / Conventional interpretations of WWII hold that the war brought the United States out of the Great Depression and laid the path for future economic prosperity. However, this was not the case for all businesses and industries. During WWII, unprecedented production output was required of U.S. industries to supply the great “Arsenal of Democracy.” Industrial mobilization required the creation of new agencies and commissions to manage the nation’s resources. These organizations created policies that deeply impacted U.S. industries involved in war production. Policies governing such areas as the allocation of raw materials, transportation of finished goods, and distribution of war contracts created challenges for businesses that often resulted in lost productivity and in some cases, loss of profitability. Government regulation of the labor force and labor problems such as labor shortages, high absenteeism and turnover rates, and labor disputes presented further challenges for businesses navigating the wartime economy. Most studies of WWII industrial mobilization have focused on large corporations in high priority industries, such as the aircraft, petroleum, or steel industries, which achieved great success during the war. This thesis presents a case study of The Real Silk Hosiery Mills of Indianapolis, Indiana, a company that is representative of small and mid-sized companies that produced lower priority goods. The study demonstrates that the policies created by the military and civilian wartime agencies favored large corporations and had a negative affect on some businesses like Real Silk. As such,the economic boost associated with the war did not occur across the board.