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1.
In this paper, I investigate whether access to migration reduces the positive effect of natural resources on the onset of civil conflicts shown in the literature. There is a negative and significant correlation between the interaction variable “migration rate-natural resources” and the probability of outbreak of civil wars, showing that the effect of natural resources is conditional on the migration rate. Simulations to quantify the marginal effects of the interaction term show that a migration rate equal to 6% or higher dampens the effect of natural resources on civil wars. To address the potential endogeneity problem in estimating the relationship between civil conflicts and migration, although I distinguish economic migrants from refugees, I also use an IV approach. In this respect, the negative effect of the two interacting variables on the probability of outbreak of civil wars remains robust after having instrumented the migration rate by using the gravity-based predicted emigration rate. Given the endogenous nature of the ratio of primary exports to GDP, in addition, the study directly utilizes the emigration rates as an alternate robust method to estimate the primary issue on civil conflicts. The results show that only the civil conflicts caused by natural resources are negatively impacted by emigration rates.  相似文献   

2.
Management is one of the few professions, the authors note, in which members have no formal “rehearsal space” for honing their skills. In response to this need, organizations such as The Center for Creative Leadership, MIT's Learning Center, and The Stern School of Business at New York University have created a brave new world of management simulations—“practice fields” for the learning organization. Some of these new games (“simuworlds”) use computer programs to replicate an entire industry and give participants an opportunity to play out one company's strategy in that setting. Other simulations (“microworlds”) engage participants in complex behavioral role playing, based on scenarios that typically develop within a company. Still other simulations combine both approaches. The authors take their point of departure from Peter Senge's definition of the “learning barriers” that develop in any organization: solving fragmented “problems” rather than dealing with systemic issues; overemphasis on competition at the expense of cooperation; and a failure to innovate until forced to do so. The new simulations, the authors argue, are particularly useful in helping managers learn how to overcome these barriers.  相似文献   

3.
The cause of the “housing bubble” associated with the sharp rise and then drop in home prices over the period 1998–2008 has been the focus of significant policy and research attention. The dramatic increase in subprime lending during this period has been broadly blamed for these market dynamics. In this paper we empirically investigate the validity of this hypothesis vs. several other alternative explanations. A model of house price dynamics over the period 1998–2006 is specified and estimated using a cross-sectional time-series data base across 20 metropolitan areas over the period 1998–2006. Results suggest that prior to early 2004, economic fundamentals provide the primary explanation for house price dynamics. Subprime credit activity does not seem to have had much impact on subsequent house price returns at any time during the observation period, although there is strong evidence of a price-boosting effect by investor loans. However, we do find strong evidence that a credit regime shift took place in late 2003, as the GSE’s were displaced in the market by private issuers of new mortgage products. Market fundamentals became insignificant in affecting house price returns, and the price-momentum conditions characteristic of a “bubble” were created. Thus, rather than causing the run-up in house prices, the subprime market may well have been a joint product, along with house price increases, (i.e., the “tail”) of the changing institutional, political, and regulatory environment characteristic of the period after late 2003 (the “dog”).  相似文献   

4.
We have had a spate of works on “Japanese Management” in the world, but very few on “Japanese Accounting”. In this article it is made clear that the functioning of accounting is contingent on the culture in which the accounting systems are incorporated, and that in order to discuss this intermingling of accounting and culture a perspective elaborated in Scandinavia can be relevant despite the uniqueness of Japanese culture. For only non-rationalistic or “naturalistic” perspectives can provide a basis for understanding the cultural dynamics of Japanese organizations and Japanese society. Thus the roles of accounting in Japan go far beyond what has been discussed in accounting textbooks.  相似文献   

5.
This note extends the recent work of Steinnes by formulating and testing a similar but more complete dynamic reduced form model of intraurban location decisions. The formulation of the model corrects a specification error by Steinnes, and a dummy variable technique is applied to yield consistent estimates. The results include relations between the employment sectors as well as between population and employment and, when they differ from those previously published, they are more plausible. The basic conclusion of the note is that “jobs follow people.”  相似文献   

6.
Akihiro  Takeshi  Shoko   《Socio》2009,43(4):263-273
This paper presents a Data Envelopment Analysis/Malmquist index (DEA/MI) analysis of the change in quality-of-life (QOL), which is defined as the state of a social system as measured by multiple social-indicators. Applying panel data from Japan's 47 prefectures for the period 1975–2002, we identify significant movement in the country's overall QOL using a “cumulative” frontier shift index. Results suggest that Japan's QOL rose during the so-called “bubble economy years” (second half of the 1980s), and then dropped in the succeeding “lost-decade” (1990s). We also identify those prefectures considered most “responsible” for the shift(s) in QOL. Moreover, the use of both upper- and lower-bound DEAs enabled an evaluation of both “good” and “bad” movements in QOL.  相似文献   

7.
《Economic Systems》2022,46(2):100876
This paper investigates the relationship between democracy and public debt in the Arab world over the period 2002–2013. The results show strong evidence of an inverted U-shaped relationship between democracy and public debt. This means that democratization is associated with lower debt only when a certain level of democracy is reached. In an attempt to explain these findings, we assume that the effect of democracy on public debt operates mainly through its impact on government spending and government revenue. Our results show that the inverted U-shaped relationship between democracy and public debt stems from the inverted U-shaped democracy-government spending path and the U-shaped democracy-government revenue pattern. This implies that, at the earlier stages of democratization, democracy is associated with an increase in government spending and a decrease in government revenue, which stimulates public debt. However, beyond a certain level of democracy, further democratization reduces government spending and enhances government revenue, leading to lower levels of public debt. Hence, achieving some level of democracy is a key prerequisite to improve the effectiveness of public spending, enhance tax compliance, and thereby control public debt.  相似文献   

8.
The “Law of Markets” as originally stated by Fetter and amended by Hyson and Hyson is based on the assumption that the transportation of goods is along a line segment from firm to customer. In many situations the assumption that transportation is along a block-like network of roads is a better approximation of reality. In this paper we establish the “law of markets” appropriate to the block metric. We discover that with such a metric there exist significant discontinuities in a firm's demand functions and we argue that these discontinuities have important implications for the types of competitive strategies open to firms.  相似文献   

9.
The paper reviews the literature on maintenance management, integrates key dimensions of maintenance within a taxonomy of maintenance configurations, and explores the impact of differing configurations on contextual factors and operational performance. “Prevention”, “hard maintenance integration” and “soft maintenance integration” were identified as key maintenance variables. Data were collected from 253 Swedish manufacturing companies, and three distinct clusters were identified. “Proactive Maintainers” emphasized preventive maintenance policies. “IT Maintainers” relied on computerized and company-wide integrated information systems for maintenance. “Maintenance Laggers” emphasized all maintenance dimensions to lesser extent than the others. The importance of maintenance prevention and integration differ between contexts. There were subtle performance differences across identified configurations, but preventive and integrated maintenance were more important for companies seeking competitive process control and flexibility. There existed no group with any great emphasis on all three maintenance dimensions, but attaining truly high performance may require a rare mix of the three dimensions. This mix of variables could constitute a hypothesized “World Class Maintenance” group.  相似文献   

10.
In examining collective bargaining, industrial relations (IR) emphasizes a number of things of interest to HR scholars. First, IR adopts a different level of analysis from HR — that of the economy and the broader society — in contrast to HR's primary focus on the employing organization. Second, IR has an understanding of workplace conflict that emphasizes its collective and inherent nature, complementing HR's focus on managing individual conflict for the good of the organization. Finally, IR addresses the value of collective bargaining in promoting democracy and correcting “labor problems” arising from competitive markets, even in situations in which there is excellent personnel management.  相似文献   

11.
This review is a supplement to the paper by Sharp and Price (1990) and should be regarded as an alternative engineering approach to the modelling and forecasting of experience, or learning, curves. It highlights the problems associated with accurately defining a model to time series that show a combination of a continuous trend and a cyclical component, as detected by the authors in the Sharp and Price data. The authors give a number of alternative perspectives of the same time series, in this case average thermal efficiency data from the U.K. electricity supply industry, with the corresponding conclusions associated with each approach. Particular attention is drawn to the use of the “time constant learning curve” quoted by Sharp and Price which the authors show is a reasonable predictor of the average thermal efficiency. However, a tremendous improvement results from selecting the “ripple” model as a thermal efficiency predictor.  相似文献   

12.
This article provides a series of reflections on the practice of carrying out processual research on organisational change. At a broad level, some of the main tasks associated with conducting company case studies are described and the benefits of this approach for dealing with complex change data are outlined. At a more specific level, the article addresses three main areas tied to the actual “doing” of processual research. First, the notion of tacit knowledge and “getting your hands dirty” by engaging in ongoing in-depth fieldwork. Second, the design and implementation of a longitudinal case study research programme. Third, the advantages and concerns of combining a range of different data collecting techniques in carrying out processual studies. Overall, the main intention is to provide some useful reflections and practical insights, as well as providing something of the flavour of carrying out this type of research.  相似文献   

13.
A typology of a class of service systems is proposed. The typology links strategic operational objectives to the decision to de-couple work between the front and back offices of a service system. Four specific ideal types of a strategy/de-coupling mix are described; each of which has distinct operational, marketing and human resource ramifications. A type that has had significant representation in traditional literature is the “Cost Leader” type, where back-office activities are de-coupled from the front office for the purpose of lowering costs. Another traditional type representative of the craftsman legacy is the “Personal Service” type, which retains back-office tasks in the front office to pursue non-cost-oriented strategic goals. Theoretical and empirical evidence is also given for two non-traditional types: the “Kiosk” type, where all tasks remain in the front office to achieve lower costs, and the “Focused Professional” type, which de-couples front- and back-office activities to enable front-office workers to provide higher service, rather than to reduce costs. Empirically, retail bank lending systems are analyzed to support the typology.  相似文献   

14.
The extension of management discourse to public-sector entities in Italy comes up against a particularly interesting case in museums and art organisations. Here more than anywhere else, perhaps, the rhetoric of managerialisation faces serious problems in understanding the nature of such anomalous organisations, and defining frameworks for representing their performances. In such a context management knowledge often leads to radical conflicts with well established professional discourses (museology, museography, history of art, etc.). Rather than a simplistic, pre-defined and ready-to-use exercise in “performance valuation”, the article suggests a more modest approach, processual in nature, whereby performance representation is open to dialogue with the basic features of the substantive culture of the professionals and the central role they still occupy in the management of these kinds of organisation.  相似文献   

15.
The “back-to-the-city” phenomenon presented an unpredicted countercurrent in the prevalent tide of suburbanization, and this process of upper-income resettlement in the inner city has been thoroughly analyzed in the urban economic literature. Housing renovation, a process that always accompanies gentrification and constitutes a significant portion of residential housing investment, has been studied much less. Contrary to the expectation that “location matters,” the existing empirical studies have concluded that most neighborhood amenities and structural attributes are insignificant as determinants of renovation. Using a detailed parcel-level data set that documents all residential renovation activity in Chicago between 1995 and 2000, this paper establishes that the characteristics of a building and its neighborhood do indeed influence the likelihood that it will be renovated.  相似文献   

16.
Only 10% of the results of consultations in primary care can be assigned to a confirmed diagnosis, while 50% remain “symptoms” and 40% are classified as “named syndromes” (“picture of a disease”). Moreover, less than 20% of the most frequent diagnoses account for more than 80% of the results of consultations. This finding, confirmed empirically during the last fifty years, suggests a power law distribution, with critical consequences for diagnosis and decision making in primary care.Our results prove that primary care has a severe “black swan” element in the vast majority of consultations. Some critical cases involving “avoidable life-threatening dangerous developments” (ALDD) such as myocardial disturbance, brain bleeding, and appendicitis may be masked by those often vague symptoms of health disorders ranked in the 20% most frequent diagnoses. The Braun distribution predicts the frequency of health disorders on a phenomenological level and reveals the “black swan” problem, but is not a tool by itself for arriving at accurate diagnoses. To improve predictions and enhance the reliability of diagnoses we propose standards of documentation and a systematic manner by which the risk facing a patient with an uncertain diagnosis can be evaluated (diagnostic protocols).Accepting a power law distribution in primary care implies the following: (1) primary care should no longer be defined only by “low prevalence” properties, but also by its black-swan-incidence-problem. This includes rethinking malpractice and the requirements of malpractice litigations; (2) at the level of everyday practice, diagnostic protocols are tools to make diagnoses more reliable; (3) at the level of epidemiology, Braun’s system of classification is useful for generating valid information by which predictions of risks can be improved.  相似文献   

17.
The Italian labour market, like most European labour markets and unlike the US, shows a greater cyclical sensitivity of the service sector with respect to manufacturing and firing costs higher than hiring costs. This accounts for the negative relationship between sectoral employment shifts and Italian unemployment in the post-war period and, correspondingly, for the pro-cyclical pattern of the Lilien index, in contrast with the US experience.By applying the Lilien index to the Italian context, this paper analyses the relative importance of sectoral regional and national factors in the explanation of changes in industrial structure, and their impact on unemployment. The econometric exercise illustrates that, given the structural features of the Italian labour market, the decline in intersectoral and interregional labour reallocations has significantly contributed to the increase of unemployment in Italy. New hires, the pull of new sectors, sectoral shifts and regional mobility can keep unemployment down, while at the same time maintaining some of the structural features of the “European model” (high employment security and stability).  相似文献   

18.
This paper empirically investigates the role of social capital in households' residential mobility behavior by considering its spatial dimension. This study focuses on a household's social ties with people living nearby, which we refer to as its “local social capital.” Local social capital may deter residential mobility, because the resources stemming from them are location-specific and will be less valuable if a household moves. We conjecture that a household's possession of local social capital has a negative effect on its residential mobility, and this negative effect of local social capital may be stronger on long-distance mobility than on short-distance mobility. Our empirical investigation is based on data from the Panel Study of Income Dynamics. We obtain evidence which is supportive of these conjectures.  相似文献   

19.
A fuzzy-QFD approach to supplier selection   总被引:5,自引:0,他引:5  
This article suggests a new method that transfers the house of quality (HOQ) approach typical of quality function deployment (QFD) problems to the supplier selection process. To test its efficacy, the method is applied to a supplier selection process for a medium-to-large industry that manufactures complete clutch couplings.The study starts by identifying the features that the purchased product should have (internal variables “WHAT”) in order to satisfy the company's needs, then it seeks to establish the relevant supplier assessment criteria (external variables “HOW”) in order to come up with a final ranking based on the fuzzy suitability index (FSI). The whole procedure was implemented using fuzzy numbers; the application of a fuzzy algorithm allowed the company to define by means of linguistic variables the relative importance of the “WHAT”, the “HOWWHAT” correlation scores, the resulting weights of the “HOW” and the impact of each potential supplier.Special attention is paid to the various subjective assessments in the HOQ process, and symmetrical triangular fuzzy numbers are suggested to capture the vagueness in people's verbal assessments.  相似文献   

20.
The point of departure for this study is the pervasive finding that, other things equal, local jurisdictions tend to spend more on local services the larger the fraction of renters among their residents. This paper seeks to determine the approximate magnitude of this “renter effect” by posing the question “How much smaller would local public budgets be if all residents were home-owners?” Making use of two quite different approaches, the paper finds a typical renter effect on local public expenditure on the order of ten percent. This finding suggests that we might do well to reform the administration of the property tax so that changes in property tax liabilities on rental dwellings are directly and visibly transformed into changes of monthly rental payments.  相似文献   

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