This thesis consists of four self-contained papers on job turnover, productivity and state- local finance. Paper [I] deals with the determinants of the rate of job turnover defined as the change in distribution of employment between and within industries in Swedish manufacturing. The rate of inter-industry job turnover is driven by the dispersion of profit changes among industries. Shifts in international competitiveness among industries seem to play a central role in the explanation of this pattern. The rate of intra-industry job turnover has been higher in industries with many small plants, low profit margins and high import penetration. Paper [II] analyzes the impact of openness on total factor productivity (TFP) growth. Using Swedish industry level data the results show that economically integrated industries tend to be more engaged in research and development (R&D) and have more entry and exit activity than other industries. The domestic R&D intensity does not contribute to the TFP growth rate. Instead, the results imply that openness to international markets, which helps facilitate technology spillovers, has a significant impact on the growth rate. There is also some evidence suggesting that producers exiting the market are less productive, implying that such exits will increase the average productivity of the industry concerned. The purpose of Paper [III] is to design and implement a test of whether the external effect from tax base sharing among local and regional governments is internalized via the intergovernmental transfer system. The test is based on the observation that if the external effect is internalized, an increase in the income tax rate at one level of government will induce the other level to reduce its income tax rate by the corresponding amount, leaving the effective tax rate unchanged. By using panel data for the Swedish local and regional public sectors, we estimate the reaction function for the local income tax rate. The results imply that an increase in the regional income tax rate induces the municipalities in the region to decrease their income tax rates. In addition, we are able to reject the null hypothesis that the external effect from tax base sharing is internalized. Paper [IV] concerns risk-sharing, in terms of how the central government smooths personal income among municipalities via the tax and transfer systems. Using Swedish panel data, the results show that the national tax and transfer systems mitigate an adverse shock to income of one krona so that disposable income falls by 67 öre, on average. However, there are large differences across regions, where the effect on disposable income varies between 32 and 78 öre in the krona. / digitalisering@umu

本論文將勞動市場的狀態過程說明非常完整，即是勞動者的搜尋過程、工作配合過程都是詳細介紹其理論背景，以及實証的結果。由於，在勞動市場上，由於勞動者與廠商之間的訊息不完全，造成勞動者與廠商兩者之間往往無法一拍即合，而導致勞動者可能離職他就，廠商亦可能另聘高明，於是工資變動與工作異動就成為經常看到的現象。 在本文研究勞動者工作異動的情形，在理論模型上是以工作契合理論為基礎，而要討論工作契合理論的基礎則必須先知道Lippmam與MaCall(1976)所提出的工作搜尋理論。因為工作契合理論又是以工作搜尋理論為基礎，因此在理論模型上必先討論工作搜尋理論，進而討論工作契合理論。 文中研究主要藉由民國八十五年九月高希均教授與林祖嘉教授於八十四年四月至八十五年六月期間針對民國八十一年六月專上畢業生的資料，分析全体專上畢業生、女性專畢業生與男性畢業生在工資、工作契合期間與勞工離職率決定以及動態行為決定。並且我們把這些資料分為四大類基本資料：個人背景資料、工作配合資料、人力資本資料與工作特徵及其基本資料。在工資的模型方面則利用一般的最小平方法來估計，因為假設市場上的工資分配為一常態分配，是一般實証文獻常用的。就勞工的契合期間，我們運用林祖嘉(1991)的模型，本文則用在勞動者的離職率與工作契合期間的決定。我們分為四個模型，分別是：Weibull、exponential、lognormal與logistic四種分配。在勞工離職方面我們運用了Cox(1972)的比例危險率模型，Lynch(1991)首次將之運用在勞動者工作異動的決定，除此之外，我們也進一步的討論工資、工作契合期間與離職率的進一步的動態的分析。

Text in Afrikaans / In hierdie studie is gepoog om insig in die beroepsmobiliteit van maatskaplike werkers te verkry. Om dit te kon bereik, is eerstens 'n uitgebreide literatuurstudie onderneem en is die aard van beroepsmobiliteit, faktore wat 'n invloed op die beroepsmobiliteit van maatskaplike werkers kan he en die gevolge daarvan op maatskaplikewerkdienslewering, die maatskaplike werker en die maatskaplikewerkorganisasie verken en beskryf. Tweedens is 'n empiriese studie onderneem en is inligting oor die navorsingsonderwerp deur middel van posvraelyste as data-insamelingsinstrument by maatskaplike werkers en maatskaplikewerkorganisasies verkry. Die empiriese studie het aangedui dat maatskaplike werkers meestal aan onrealisties hoe roleise in die werksituasie en hul persoonlike lewens blootgestel is en dat die omgewings waarin hul figureer, soos die werksomgewing en persoonlike omgewings, dikwels as onvriendelik beleef word en dat dit 'n stabiele arbeidsmag verhinder. Faktore wat met die werksomstandighede van maatskaplike werkers verband hou, dra by tot die beroepsmobiliteit van maatskaplike werkers, sowel as faktore wat met persoonlike omstandighede verband hou, terwyl oorplasings en bevorderings ook 'n rol in die werksomset van maatskaplike werkers speel. Interaksie en wedersydse beinvloeding tussen die verskillende faktore vind voortdurend plaas. Daar is tot die gevolgtrekking gekom dat die maatskaplike werker, deur beroepsmobiel te wees, poog om 'n passing tussen roldruk en omgewingsdruk te bewerkstellig. Met betrekking tot die gevolge van die werksomset van maatskaplike werkers, is bevind dat maatskaplikewerkdienslewering, die maatskaplike werker en die maatskaplikewerkorganisasie positief en negatief beinvloed word wanneer maatskaplike werkers van werk verwissel of ophou om beroepsarbeid te verrig. Tendense kon deur die ondersoek vasgestel word en dit kan hydra tot die ontwikkeling van 'n teorie oor die beroepsmobiliteit van maatskaplike werkers. Aanbevelings is gemaak ten einde die beroepsmobiliteit van maatskaplike werkers te verminder en/of te voorkom / This study attempts to gain insight into the occupational mobility of social workers. In order to achieve this, an· extensive literature study was undertaken and the nature of occupational mobility, factors that could affect the occupational mobility of social workers and the consequences thereof on the delivery of social work, the social worker and the social work organisation were explored and described. Secondly, an empirical study was undertaken and information on the research topic was obtained from social workers and social work organisations through postal questionnaires as data gathering instruments. The empirical study indicated that social workers are mostly exposed to unrealistically high role demands in the work situation and in their personal lives and that the environments in which they figure, such as the work and personal environments, are often experienced as unfriendly and that these hinder a stable labour force. Factors related to the working conditions as well as to the personal situations of social workers contribute to the occupational mobility of social workers while transfers and promotions also play a part in the work turnover of social workers. Interaction and mutual influencing between the various factors take place constantly. It is concluded that occupational mobility is the result of the social workers' efforts to bring about a harmony between role and environmental pressures. With regard to the work turnover of social workers, it was found that the delivery of social work service, the social worker and the social work organisation are affected positively and negatively when social workers change jobs or cease to perform professional work. The study was able to pinpoint trends and this can contribute to the development of a theory on the occupational mobility of social workers. Recommendations were made to reduce and/or prevent the occupational mobility of social workers / Social Work / D. Phil. (Maatskaplike Werk)

Text in Afrikaans / In hierdie studie is gepoog om insig in die beroepsmobiliteit van maatskaplike werkers te verkry. Om dit te kon bereik, is eerstens 'n uitgebreide literatuurstudie onderneem en is die aard van beroepsmobiliteit, faktore wat 'n invloed op die beroepsmobiliteit van maatskaplike werkers kan he en die gevolge daarvan op maatskaplikewerkdienslewering, die maatskaplike werker en die maatskaplikewerkorganisasie verken en beskryf. Tweedens is 'n empiriese studie onderneem en is inligting oor die navorsingsonderwerp deur middel van posvraelyste as data-insamelingsinstrument by maatskaplike werkers en maatskaplikewerkorganisasies verkry. Die empiriese studie het aangedui dat maatskaplike werkers meestal aan onrealisties hoe roleise in die werksituasie en hul persoonlike lewens blootgestel is en dat die omgewings waarin hul figureer, soos die werksomgewing en persoonlike omgewings, dikwels as onvriendelik beleef word en dat dit 'n stabiele arbeidsmag verhinder. Faktore wat met die werksomstandighede van maatskaplike werkers verband hou, dra by tot die beroepsmobiliteit van maatskaplike werkers, sowel as faktore wat met persoonlike omstandighede verband hou, terwyl oorplasings en bevorderings ook 'n rol in die werksomset van maatskaplike werkers speel. Interaksie en wedersydse beinvloeding tussen die verskillende faktore vind voortdurend plaas. Daar is tot die gevolgtrekking gekom dat die maatskaplike werker, deur beroepsmobiel te wees, poog om 'n passing tussen roldruk en omgewingsdruk te bewerkstellig. Met betrekking tot die gevolge van die werksomset van maatskaplike werkers, is bevind dat maatskaplikewerkdienslewering, die maatskaplike werker en die maatskaplikewerkorganisasie positief en negatief beinvloed word wanneer maatskaplike werkers van werk verwissel of ophou om beroepsarbeid te verrig. Tendense kon deur die ondersoek vasgestel word en dit kan hydra tot die ontwikkeling van 'n teorie oor die beroepsmobiliteit van maatskaplike werkers. Aanbevelings is gemaak ten einde die beroepsmobiliteit van maatskaplike werkers te verminder en/of te voorkom / This study attempts to gain insight into the occupational mobility of social workers. In order to achieve this, an· extensive literature study was undertaken and the nature of occupational mobility, factors that could affect the occupational mobility of social workers and the consequences thereof on the delivery of social work, the social worker and the social work organisation were explored and described. Secondly, an empirical study was undertaken and information on the research topic was obtained from social workers and social work organisations through postal questionnaires as data gathering instruments. The empirical study indicated that social workers are mostly exposed to unrealistically high role demands in the work situation and in their personal lives and that the environments in which they figure, such as the work and personal environments, are often experienced as unfriendly and that these hinder a stable labour force. Factors related to the working conditions as well as to the personal situations of social workers contribute to the occupational mobility of social workers while transfers and promotions also play a part in the work turnover of social workers. Interaction and mutual influencing between the various factors take place constantly. It is concluded that occupational mobility is the result of the social workers' efforts to bring about a harmony between role and environmental pressures. With regard to the work turnover of social workers, it was found that the delivery of social work service, the social worker and the social work organisation are affected positively and negatively when social workers change jobs or cease to perform professional work. The study was able to pinpoint trends and this can contribute to the development of a theory on the occupational mobility of social workers. Recommendations were made to reduce and/or prevent the occupational mobility of social workers / Social Work / D. Phil. (Maatskaplike Werk)

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