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411.
We examine the effect of regularly scheduled macroeconomic announcements on the beliefs and preferences of participants in the U.S. Treasury market by comparing the option-implied state-price densities (SPDs) of bond prices shortly before and after the announcements. We find that the announcements reduce the uncertainty implicit in the second moment of the SPD regardless of the content of the news. The changes in the higher-order moments, in contrast, depend on whether the news is good or bad for economic prospects. We explore three alternative explanations for our empirical findings: relative mispricing, changes in beliefs, and changes in preferences. We find that our results are consistent with time-varying risk aversion.  相似文献   
412.
As the economic crisis deepened and widened, fears of a return to the protectionist spiral of the 1930s become more common. However, an important difference between the 1930s and today is the existence of the World Trade Organization and the legal limits it imposes on the protectionist responses members can pursue. The first objective of this paper is to assess the extent to which applied tariffs can be legally raised without violating bound tariff obligations and compare it with what is economically feasible. The second objective is the examination of whether individual countries have taken advantage of these legal tariff hikes as protectionist responses during economic crises, after the creation of the WTO. Results suggest that the policy space left when looking at what is economically possible is indeed quite large. However, in the recent past little of the available policy space has been used by countries suffering from an economic crisis.  相似文献   
413.
Price responses are usually estimated for the average household. However, different households are unlikely to respond in a similar way to movement in prices. Consequently, relying on averages may be misleading when examining the behaviour of a particular group of households such as the poor. This article uses six household surveys collected in Mexico between 1989 and 2000 to derive price responses for 10 product groups and for five levels of income households. The estimated price elasticities are then fed into a micro simulation model to measure the effect of a marginal tax reform. The results find that that poorer households tend to react substantially more to movement in prices, suggesting the usefulness of estimating elasticities that reflect the behavioural responses of the poor rather than of the entire population. The micro simulation results indicate that reducing the taxes on maize, alcoholic beverages and vegetables would be both more equitable and more efficient in terms of social welfare. Meanwhile, a reduction in the tax on legumes, sugar, and oils and fats, while inefficient, would contribute to reduce inequality.  相似文献   
414.
415.
The main objective of this research1 was to study boundaries to the ‘boundaryless career’ in a novel context. Our empirical study focused on career paths leading top managers to enter emergent firms. We collected data on professional histories of a sample of top managers who operated in firms listed at the ‘Nuovo Mercato’ (New Market), the Italian equivalent of the NASDAQ. We demonstrate the existence of two major kinds of boundaries: competence-based (in the form of industry boundaries) and relation-based (in the form of professional network boundaries). A second objective of our research was to identify dominant individual career logics and to connect different career logics to the boundaryless career concept. Our data reveal the dominance of the evolutionary career logic.  相似文献   
416.
We provide a plausible explanation of aggregate portfolio behavior, in a framework where economic agents have behavioral (narrow framing) preferences. The representative agent derives utility not only from consumption (standard models) but also from risky financial wealth fluctuations. Moreover, the investor frames the stock market risk narrowly and has loss averse preferences. We numerically solve, for the foreign equity share, a simple model of international portfolio choice, providing a possible explanation for the equity home bias puzzle. Only economic agents able to process correctly information deriving from stock markets exploit the diversification opportunities provided by international financial markets.  相似文献   
417.
The Determinants of Export Performance: A Firm-Level Study of Italian Manufacturing. — This paper analyzes some determinants of a firm’s probability of exporting and export intensity and presents the findings of an empirical study carried out on a large sample of Italian firms. On the basis of Probit and Tobit estimates, it emerges that these determinants change according to the size of firms. In particular, only for small firms is the relationship between size and export performance positive. The export activity of small and medium-sized firms decreases with the share of sales due to subcontracting. Larger firms, instead, benefit more from being affiliated with business groups and performing innovative activities of a different nature.  相似文献   
418.
Design of the optimal feeding policy in an assembly system   总被引:4,自引:0,他引:4  
This paper describes an innovative and integrated approach to component management optimization within a production/assembly system. In a mixed-models assembly process the handling of parts and components for each work station represents a substantial variable that can greatly affect job duration and efficiency. This paper is strictly related to Assembly to Order/Manufacturing to Order (ATO and MTO) systems, where lead time has to be very short and flexibility is at its maximum level. In Assembly to Order (ATO) or Make to Order (MTO) systems, the production is increasingly getting more customized in response to the demand, thanks to the progresses reached in both manufacturing and information technologies. It is becoming increasingly possible to assemble or make products specifically in response to the requests of either end customers or retailers. As a consequence of such customization, the design of the whole system must take into direct account several elements: parts warehouses location, feeding policies and feeding systems. In some cases the collection of parts and components required picking activities, in other the movement of entire units load.In several instances experts have analyzed the problems about material centralization/decentralization, storage policies and assembly feeding problem in different and independent ways, while the problem needs an integrated approach. While many researches regarding components allocation problems in ATO and MTO systems, did not consider feeding policies, material picking, packing activities and vehicles optimization, this paper cover focuses on filling such gap using an integrated framework that considers both aspects of the problem: the centralization/decentralization of components in order to minimize the total storage costs and the right feeding policies.Feeding problems in assembly lines are some of the most important aspects to consider during the analysis and design of an assembly system, to allow the maximization of efficiency and flexibility. To reach such goals, a multi-factorial analysis has been carried out during this experiment and will validate the introduced framework. An industrial application of the introduced framework is illustrated to explain its real significant production implication.  相似文献   
419.
This paper analyzes the dynamic properties of the Taylor rule with the zero lower bound on the nominal interest rate in an optimizing monetary model with overlapping generations à la Yaari–Blanchard–Weil. The main result is that the presence of wealth effects is not sufficient to rule out the possibility of infinite equilibrium paths with decelerating inflation. In particular, in the presence of wealth effects, the occurrence of liquidity traps is not avoided when the central bank implements a Taylor-type interest-rate feedback rule.  相似文献   
420.
The increased scrutiny of investors regarding the non-financial aspects of corporate performance has placed portfolio managers in the position of having to weigh the benefits of ‘holding the market’ against the cost of having positions in companies that are subsequently found to have questionable business practices. The availability of stock indexes based on sustainability screening makes increasingly viable for institutional investors the transition to a portfolio based on a Socially Responsible Investment (SRI) benchmark at relatively low cost. The increasing share of socially responsible investments may play a role in providing incentives towards a continuous upgrading of sustainability standards to the extent that their performance is not systematically inferior to that of the other funds. This article examines whether these incentives have been so far detectable with particular reference to the Dow Jones Sustainability Stoxx Index (DJSSI) that focuses on the European corporations with the highest CSR scores among those included in the Dow Jones Stoxx 600 Index. The aim of the article is twofold. First, we analyse the performance of the DJSSI over the period 2001–2006 compared to that of the Surrogate Complementary Index (SCI), a new benchmark that includes only the components of the DJ Stoxx 600 that do not belong to the ethical index to evaluate more correctly the size of possible divergent performances. Second, we perform an event study on the same data set to analyse whether the stock market evaluation reacts to the inclusion (deletion) in the DJSSI. In both cases, the results suggest that the evaluation of the CSR performance of a firm is a significant criterion for asset allocation activities.  相似文献   
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