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1.
Globalization presents social scientists with a wide variety of issues and challenges that cut across disciplinary boundaries. Disciplinary boundaries encourage specialization and advances in understanding aspects of social behavior, but specialization also creates barriers to more comprehensive understanding of social behavior such as globalization. Successful interdisciplinary efforts entail gains from trade across disciplinary specializations. The papers in this volume help outline an agenda for interdisciplinary investigation of globalization to knock down disciplinary boundaries and encourage gains from trade that further our understanding of globalization. But much work remains before we see real fruits from such efforts.  相似文献   

2.
We develop a Ricardian trade model that incorporates realistic geographic features into general equilibrium. It delivers simple structural equations for bilateral trade with parameters relating to absolute advantage, to comparative advantage (promoting trade), and to geographic barriers (resisting it). We estimate the parameters with data on bilateral trade in manufactures, prices, and geography from 19 OECD countries in 1990. We use the model to explore various issues such as the gains from trade, the role of trade in spreading the benefits of new technology, and the effects of tariff reduction.  相似文献   

3.
Increasing numbers of pregnant women are working throughout much, if not all, of their pregnancies. In this secondary analysis of existing longitudinal data on family health, pregnant women were grouped according to employment status: 126 homemakers, 70 employed part-time, and 135 employed full-time. There were no significant differences between the groups in measures of distress, including depression, trait and state anxiety, and perception of negative life events. Homemakers were significantly younger, less educated, and had lower family incomes than either group of employed women. There was also a non-significant trend towards higher distress scores among homemakers. Overall, among these women, it was the similarities which were more striking than the differences, which supports recent research findings about distress among pregnant women.  相似文献   

4.
Management of health care is compromised by its singular reliance on billing information--i.e., a claims trail tells little of what providers think. It relates to neither prevention of disease nor reduction of unnecessary health care costs. Billing information is not the substrate to be used in the pursuit of appropriateness, effectiveness, and value. To improve medical management of health care, a protected, but accessible clinical database is needed.  相似文献   

5.
As climate change impacts result in more extreme events (such as droughts and floods), the need to understand which policies facilitate effective climate change adaptation becomes crucial. Hence, this article answers the question: How do governments and policymakers frame policy in relation to climate change, droughts, and floods and what governance structures facilitate adaptation? This research interrogates and analyzes through content analysis, supplemented by semi‐structured qualitative interviews, the policy response to climate change, drought, and flood in relation to agricultural producers in four case studies in river basins in Chile, Argentina, and Canada. First, an epistemological explanation of risk and uncertainty underscores a brief literature review of adaptive governance, followed by policy framing in relation to risk and uncertainty, and an analytical model is developed. Pertinent findings of the four cases are recounted, followed by a comparative analysis. In conclusion, recommendations are made to improve policies and expand adaptive governance to better account for uncertainty and risk. This article is innovative in that it proposes an expanded model of adaptive governance in relation to “risk” that can help bridge the barrier of uncertainty in science and policy.  相似文献   

6.
Leaders, followers, and time   总被引:5,自引:4,他引:1  
In order to consider leadership from a temporal perspective, we examine extant leadership research that refers to temporal variables in its theorizing and/or empirical testing. We consider rhythmic patterns manifested in leader and follower behavior and employ entrainment, polychronicity, pace/speed, punctuality, and temporal depth as categorization concepts for the analysis. Further, we propose general theoretical statements about temporal dimensions and their prospective roles in relationships and processes related to leadership.  相似文献   

7.
For stationary time series models with serial correlation, we consider generalized method of moments (GMM) estimators that use heteroskedasticity and autocorrelation consistent (HAC) positive definite weight matrices and generalized empirical likelihood (GEL) estimators based on smoothed moment conditions. Following the analysis of Newey and Smith (2004) for independent observations, we derive second order asymptotic biases of these estimators. The inspection of bias expressions reveals that the use of smoothed GEL, in contrast to GMM, removes the bias component associated with the correlation between the moment function and its derivative, while the bias component associated with third moments depends on the employed kernel function. We also analyze the case of no serial correlation, and find that the seemingly unnecessary smoothing and HAC estimation can reduce the bias for some of the estimators.  相似文献   

8.
This paper disentangles the impact of schools and teachers in influencing achievement with special attention given to the potential problems of omitted or mismeasured variables and of student and school selection. Unique matched panel data from the UTD Texas Schools Project permit the identification of teacher quality based on student performance along with the impact of specific, measured components of teachers and schools. Semiparametric lower bound estimates of the variance in teacher quality based entirely on within‐school heterogeneity indicate that teachers have powerful effects on reading and mathematics achievement, though little of the variation in teacher quality is explained by observable characteristics such as education or experience. The results suggest that the effects of a costly ten student reduction in class size are smaller than the benefit of moving one standard deviation up the teacher quality distribution, highlighting the importance of teacher effectiveness in the determination of school quality.  相似文献   

9.
Culture, Cosmopolitanism, and Risk Management   总被引:2,自引:1,他引:2  
Most cultural approaches to risk management deal with the connections between the forms of social relations within groups and the risk concerns of those groups. According to these theories, a certain limited set of different relational forms (usually three, four, or five) lead to specific, different and conflicting, risk concerns. In contrast to these theories, cosmopolitanism is an approach to culture that focuses, not on forms of sociality, but on changes among forms—expansions and contractions in the inclusivity of forms and movement by persons from one form of sociality to another. Relative to other cultural theories, cosmopolitanism thus is much more concerned with the solution of risk management problems than with their origins. Cosmopolitanism can be thought of as a cultural continuum, with cosmopolitanism at one end and pluralism at the other. Cosmopolitan persons are more open to cultural change—and thus the solution of risk management problems. In this article, we outline our new theory of cosmopolitanism, describe a method for measuring it and present an experimental study that tests some implications of the theory. Results from the study support the theory by showing that, compared to pluralistic respondents, cosmopolitan respondents are more inclusive in their risk management judgments—that is, they express equal concern for a local and a national issue, whereas the pluralistic respondents express greater concern in the local case. We discuss the risk management implications of a cosmopolitan approach to culture.  相似文献   

10.
This paper examines the impact of governmental policies in influencing the path of internationalization of small- and medium-sized enterprises (SMEs). It focuses on the role of institutions mandated to assist internationalization, as exemplified by Canada's Export Development Corporation (EDC). We illustrate and examine critically the role that governments typically play in assisting and influencing the international expansion of domestic firms. We argue that the activities of agencies such as EDC — mainly in financing and in insuring against the risks inherent in export activities — may actually be counterproductive to the long-term interests of many SMEs by skewing managers' decisions toward direct exporting, rather than toward indirect exporting by entering the value chain of already-established multinational enterprises (MNEs). A consequence may be to divert the constrained resources of entrepreneurial firms away from their greatest comparative advantage — innovation — toward managing direct entry into international markets in which they are at a comparative disadvantage relative to larger established MNEs. Highly innovative SMEs might be better off by leaving the internationalization of their innovations to MNEs and sharing some of the international direct exporting profits with them instead. The implications are relevant for governmental policies toward internationalizing SMEs not just in Canada but in open, market-oriented economies everywhere.  相似文献   

11.
The scientific standards of the Environmental Protection Agency (EPA) include the use of retrospective meta-analysis. This analysis entails a use of the theory of probability that is only a simulation and cannot accurately measure the confidence that should be placed in the results. The uncertainty necessary for probability is, in a retrospective study, simulated rather than real. There are three logical forms for establishing a proposition. In the logic of the syllogism, a proposition is established by deduction from assumed propositions. In the logic of the physical sciences, a proposition is established by its ability to predict the outcomes of future experiments. In the logic of the courtroom, a proposition is established by its ability to explain past events. The logic of the courtroom operates under the handicap of working with nonrepeatable events. It is more subject to the preferences of the judge than the logic of the physical sciences or that of the syllogism. Because the logic of the courtroom is less reliable than either the logic of the physical sciences or that of the syllogism, it is the logic of last resort, i.e., it is used only when the other two are not applicable. Under the EPA scientific standards, the logic of the courtroom is accepted for establishing propositions about the physical world. As the logic of the courtroom is less reliable than that of the physical sciences, this practice increases the likelihood of errors.  相似文献   

12.
We propose a novel generalized recursive smooth ambiguity model which permits a three‐way separation among risk aversion, ambiguity aversion, and intertemporal substitution. We apply this utility model to a consumption‐based asset‐pricing model in which consumption and dividends follow hidden Markov regime‐switching processes. Our calibrated model can match the mean equity premium, the mean risk‐free rate, and the volatility of the equity premium observed in the data. In addition, our model can generate a variety of dynamic asset‐pricing phenomena, including the procyclical variation of price–dividend ratios, the countercyclical variation of equity premia and equity volatility, the leverage effect, and the mean reversion of excess returns. The key intuition is that an ambiguity‐averse agent behaves pessimistically by attaching more weight to the pricing kernel in bad times when his continuation values are low.  相似文献   

13.
The absence of state capacities to raise revenue and to support markets is a key factor in explaining the persistence of weak states. This paper reports on an ongoing project to investigate the incentive to invest in such capacities. The paper sets out a simple analytical structure in which state capacities are modeled as forward looking investments by government. The approach highlights some determinants of state building including the risk of external or internal conflict, the degree of political instability, and dependence on natural resources. Throughout, we link these state capacity investments to patterns of development and growth.  相似文献   

14.
Perceived Risk, Trust, and Democracy   总被引:17,自引:1,他引:17  
Paul Slovic 《Risk analysis》1993,13(6):675-682
Risk management has become increasingly politicized and contentious. Polarized views, controversy, and overt conflict have become pervasive. Risk-perception research has recently begun to provide a new perspective on this problem. Distrust in risk analysis and risk management plays a central role in this perspective. According to this view, the conflicts and controversies surrounding risk management are not due to public ignorance or irrationality but, instead, are seen as a side effect of our remarkable form of participatory democracy, amplified by powerful technological and social changes that systematically destroy trust. Recognizing the importance of trust and understanding the "dynamics of the system" that destroys trust has vast implications for how we approach risk management in the future.  相似文献   

15.
This paper examines how prices, markups, and marginal costs respond to trade liberalization. We develop a framework to estimate markups from production data with multi‐product firms. This approach does not require assumptions on the market structure or demand curves faced by firms, nor assumptions on how firms allocate their inputs across products. We exploit quantity and price information to disentangle markups from quantity‐based productivity, and then compute marginal costs by dividing observed prices by the estimated markups. We use India's trade liberalization episode to examine how firms adjust these performance measures. Not surprisingly, we find that trade liberalization lowers factory‐gate prices and that output tariff declines have the expected pro‐competitive effects. However, the price declines are small relative to the declines in marginal costs, which fall predominantly because of the input tariff liberalization. The reason for this incomplete cost pass‐through to prices is that firms offset their reductions in marginal costs by raising markups. Our results demonstrate substantial heterogeneity and variability in markups across firms and time and suggest that producers benefited relative to consumers, at least immediately after the reforms.  相似文献   

16.
We consider strategyproof social choice functions defined over product domains. If preferences are strict orderings and separable, then strategyproof social choice functions must be decomposable provided that the domain of preferences is rich. We provide several characterization results in the case where preferences are separable only with respect to the elements of some partition of the set of components and these partitions vary across individuals. We characterize the libertarian social choice function and show that no superset of the tops separable domain admits strategyproof nondictatorial social choice functions.  相似文献   

17.
Leonor Modesto 《LABOUR》2008,22(3):509-546
Abstract. We study the effects of firing costs in unionized economies with heterogeneous workers. We consider an overlapping generations model where workers participate in the labour market both when young and when old. All workers belong to the same union that sets wages unilaterally. We find that at given wages firing costs increase youth unemployment and decrease old‐age unemployment. However, once the wage response is considered, firing costs increase both youth and old‐age unemployment. Indeed, knowing that when firing costs are higher firms refrain from firing, the union increases the wage of old workers, and, therefore, old‐age unemployment increases.  相似文献   

18.
Organizational strategy, structure, and process   总被引:15,自引:0,他引:15  
Organizational adaptation is a topic that has received only limited and fragmented theoretical treatment. Any attempt to examine organizational adaptation is difficult, since the process is highly complex and changeable. The proposed theoretical framework deals with alternative ways in which organizations define their product-market domains (strategy) and construct mechanisms (structures and processes) to pursue these strategies. The framework is based on interpretation of existing literature and continuing studies in four industries (college textbook publishing, electronics, food processing, and health care).  相似文献   

19.
This paper uses a data base covering the universe of French firms for the period 1990–2007 to provide a forensic account of the role of individual firms in generating aggregate fluctuations. We set up a simple multisector model of heterogeneous firms selling to multiple markets to motivate a theoretically founded decomposition of firms' annual sales growth rate into different components. We find that the firm‐specific component contributes substantially to aggregate sales volatility, mattering about as much as the components capturing shocks that are common across firms within a sector or country. We then decompose the firm‐specific component to provide evidence on two mechanisms that generate aggregate fluctuations from microeconomic shocks highlighted in the recent literature: (i) when the firm size distribution is fat‐tailed, idiosyncratic shocks to large firms directly contribute to aggregate fluctuations, and (ii) aggregate fluctuations can arise from idiosyncratic shocks due to input–output linkages across the economy. Firm linkages are approximately three times as important as the direct effect of firm shocks in driving aggregate fluctuations.  相似文献   

20.
Perceived Risk, Dread, and Benefits   总被引:7,自引:0,他引:7  
This paper uses regression techniques to take a second look at a classic risk-perception data set originally collected by Paul Slovic, Sarah Lichtenstein, and Baruch Fischhoff. As discussed in earlier studies, the attributes expected mortality, effects on future generations, immediacy , and catastrophic potential all significantly affect risk ratings. However, we find that perceived risk and dread show different regression patterns; most importantly, only perceived risk ratings correlate with expected mortality. In addition, average risk ratings are found to be significantly affected by perceived individual benefits, which suggests that perceptions of risk are net rather than gross indicators of harm.  相似文献   

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