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排序方式: 共有224条查询结果,搜索用时 15 毫秒
71.
Enrico Colombatto 《Journal of Bioeconomics》2003,5(1):1-25
The paper emphasizes two flaws in mainstream economics: the failure to understand actual human behavior in many real contexts and the failure to take account of transaction costs. By emphasizing the role of knowledge, institutions, transaction costs and path dependence, new institutional economics has provided a powerful answer to these shortcomings. Nevertheless, a number of questions remain open. In particular, path dependence is far from being a continuous process. Its dynamics and its irregularities are by and large unexplained. Hence, a strong need for a convincing evolutionary theory of environmental change. This article does not deny the validity of the Darwinian view applied to the theory of the firm and of competition in a free-market economy. The paper, however, maintains that the natural-selection process that characterizes the Darwinian approach is ill suited to describe economic evolutionary processes. It is shown that a combination of functional analysis and natural selection may indeed be a better solution, for it solves some of the puzzles raised by public choice theory without violating the fundamental tenets of the new institutional economics approach. Still, although this combined view may well explain why the institutional features are retained by the system, it does not clarify why they are introduced in the first place. A third possibility is put forward in the second part of the paper, where a new evolutionary theory is suggested. Within this framework, agents are assumed to behave according to their preferences within the existing rules of the game. At the same time, new ideas and sometimes new ideologies may influence their behavioral patterns. The combination between needs and ideologies generates environmental change, especially if so-called ideological entrepreneurs are able to transform latent and shared beliefs into an institutional project and enforce it. 相似文献
72.
For the case of smooth concave exchange economies, we provide a characterization of the inner core as the set of feasible allocations such that no coalition can improve on it, even if coalitions are allowed to use some random plans. For the case of compactly generated games, we discuss Myerson's definition of the inner core, and we characterize it using lexicographic utility weight systems. 相似文献
73.
Prof. Dr. Enrico Zaghini 《Journal of Economics》1977,37(1-2):67-82
Conclusion We have proved the existence of equilibria implying involuntary unemployment of labour in non-competitive economies with fixed wage rate. We notice that model (II) and its extensions have not been presented as aninterpretation of Keynes' theory. We may define them as Keynesian models only in the sense that they admit involuntary unemployment equilibrium, which concept is basic to Keynes' theory. In any case, we think that these models are a first step in the development of more realistic microeconomic foundations for short-run macroeconomic theory.A first draft of this paper was presented in December 1972 at the Institute of Political Economy, Faculty of Economics and Banking, Siena University. 相似文献
74.
Selena Aureli Enrico Supino 《International Journal of Hospitality & Tourism Administration》2017,18(1):84-109
This study aims to understand current Italian hotel managers’ practices in monitoring online reviews included on travel websites and online travel agencies. Results obtained by a web survey indicate what hotel managers monitor (rating, rankings, guest comments regarding different service elements) and managers’ orientation in replying to customer reviews. Findings may support online reputation management tools providers and consulting firms by highlighting the degree of hoteliers’ interest in UGC monitoring and providing insights on possible factors that differentiate current management practices and should be considered in order to offer technical solutions coherent with the distinctiveness of Italian context. 相似文献
75.
Enrico Santarelli 《Metroeconomica》1995,46(2):111-126
This article applies digraph theory to the theory of technological regimes. The first part of the paper identifies a number of links between the evolutionary approach and a particular version of the neoclassical approach to the economic analysis of technological change. Both these approaches are shown to take the body of presently-available technological knowledge as a quantifiable magnitude allowing firms varying in strategy, structure and core capabilities to explore a range of feasible alternatives within the frontiers imposed by such knowledge. The second part of the paper therefore considers technological knowledge to be a cognitive empirical structure which can be better defined and calculated by using the theorems of digraph theory. 相似文献
76.
77.
This study of risk sharing in the Italian high precision air conditioning (AC) industry confirms agency theory predictions that buyers absorb risk to a non‐negligible degree, and that they absorb more risk (a) the greater the supplier's environmental uncertainty, (b) the more risk averse the supplier, and (c) the less severe the supplier's moral hazard. The analyzed buyers accommodate for unforeseen and uncontracted‐for cost fluctuations, which is consistent with relational contract theory. The study clarifies the relationship between risk sharing and the supplier's size, technological capability, financial stability, and cost fluctuation. It also suggests how buyers may adjust their risk‐sharing strategy as suppliers grow, develop technological capabilities, and change financial structure. Copyright © 2007 John Wiley & Sons, Ltd. 相似文献
78.
Beta Regimes for the Yield Curve 总被引:2,自引:0,他引:2
We propose an affine term structure model which accommodatesnonlinearities in the drift and volatility function of the short-terminterest rate. Such nonlinearities are a consequence of discretebeta-distributed regime shifts constructed on multiple thresholds.We derive iterative closed-form formula for the whole yieldcurve dynamics that can be estimated using a linearized Kalmanfilter. Fitting the model on US data, we collect empirical evidenceof its potential in estimating conditional volatility and correlationacross yields. 相似文献
79.
Questo lavoro fornisce condizioni di dominanza stocastica di 1°, 2° e 3° ordine per problemi di decisione in condizioni d'incertezza, quando sia nota la funzione d'utilità solo in un numero finito di punti e quando le funzioni di ripartizione dei guadagni aleatori s'intersecano più d'una volta. 相似文献
80.