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11.
12.
Flavio Comim 《Review of Political Economy》2013,25(1):91-114
This essay examines the notion of a 'Scottish Tradition' and the role of common sense in Adam Smith's thought. It is a contribution to the contemporary literature on the 'Scottish Approach' and on the historical investigation of Adam Smith's intellectual background. It argues that a notion of common sense was behind Smith's view of science and that it may provide an epistemological foundation for the Scottish Tradition. The essay attempts to show how the notion of common sense may be seen as a way of emphasising the role of reason and judgement in the conceptualisation of phenomena with pragmatic and aesthetic content. 相似文献
13.
Flavio Pressacco 《Decisions in Economics and Finance》1989,12(2):29-39
Con riferimento al ben noto modello diagonale di Sharpe per le scelte di portafoglio, il presente lavoro si propone di fomire supporto teorico alla congettura (confermata da indagini sul mercato finanziario domestico) di una sostanziale rigidità della volatilità dell'ottimo portafoglio aleatorio al variare delle aspettative di mercato.
Summary It is well known that one of the key theoretical supports to modern portfolio management derives from the so called diagonal model proposed by W. Sharpe.Precisely managers should build risky portfolios with high beta if the market is expected to rise and conversely with low betas if the market is expected to fall.Here on the contrary we discuss the theoretical bases of what seems to be a law of rigidity of the volatility of the optimal risky portfolio to variations ceteris paribus of the market expectations, quite likely prevailing on financial markets.Indeed this fact seems to be supported by empirical data regarding domestic stock market collected and discussed elsewhere (Stucchi 1988).This seems to suggest that the right response to change in market expectation is to change the bond-stock composition of the protfolio, rather then to act on the volatility of the stock (risky) portfolio.相似文献
14.
Separating uncertainty from heterogeneity in life cycle earnings 总被引:5,自引:0,他引:5
This paper develops and applies a method for decomposing crosssection variability of earnings into components that are forecastableat the time students decide to go to college (heterogeneity)and components that are unforecastable. About 60% of variabilityin returns to schooling is forecastable. This has importantimplications for using measured variability to price risk andpredict college attendance. 相似文献
15.
Arménio Rego Filipa Sousa Carla Marques Miguel Pina e Cunha 《Journal of Business Research》2012,65(3):429-437
Two hundred and one employees report their psychological capital, as well as their supervisors' authentic leadership. Supervisors describe the employees' creativity. The main findings show that authentic leadership predicts employees' creativity, both directly and through the mediating role of employees' psychological capital. The study empirically validates theoretical arguments that suggest integrating authentic leadership and psychological capital in research, and indicates that both may foster employees' creativity, a crucial resource for helping organizations to face competitive challenges, take advantage of business opportunities, and improve organizational effectiveness. 相似文献
16.
Flavio Toxvaerd 《International Economic Review》2019,60(4):1737-1755
This article studies a model of disease propagation in which rational and forward‐looking individuals can control their exposure to infection by engaging in costly preventive behavior. Equilibrium outcomes under decentralized decision making are characterized and contrasted to the outcomes chosen by a social planner. In general, individuals overexpose themselves to infection, leading to suboptimally high disease prevalence. The model is applied to study the welfare effects of preexposure prophylaxis, which reduces transmission between serodiscordant couples and causes disinhibition. It is shown that a decrease in the induced infection risks increases disease prevalence and can lead to decreases in overall welfare. 相似文献
17.
In this paper, we develop the concept of the strategic industry supply curve, representing the locus of Nash equilibrium outputs and prices arising from additive shocks to demand. We show that the standard analysis of partial equilibrium under perfect competition, including the graphical representation of supply and demand, due to Marshall, can be extended to encompass imperfectly competitive markets. Our approach permits a unified treatment of monopoly, oligopoly and competition in linear supply schedules. Further, our model satisfies the five principles of incidence set out by Weyl and Fabinger [2013]. 相似文献
18.
This paper analyses a sequential merger formation game in a setting where: (i) firms compete à la Stackelberg; (ii) mergers may give rise to endogenous efficiency gains; and (iii) every merger has to be submitted for approval to the Antitrust Authority (AA). Two different types of AA are studied: first, we assume a myopic AA, which accepts or rejects a given merger without considering that this merger may be followed by other mergers; and, second, a forward looking AA, which anticipates the final industry structure a merger will give rise to, if approved. We conclude that these two types of AA adopt similar decisions whenever a merger would not trigger the exit of outsider firms. Their decisions are, however, shown to be very different when evaluating exit-inducing merger proposals. 相似文献
19.
Arménio Rego Susana Leal Miguel P. Cunha Jorge Faria Carlos Pinho 《Journal of Business Ethics》2010,94(1):107-127
Through a convenience sample of 260 employees, the study shows how employees’ perceptions about corporate citizenship (CC)
predict their affective commitment. The study was carried out in Portugal, a high in-group and low societal collectivistic
culture. Maignan et al.’s (1999, Journal of the Academy of Marketing Science
27(4), 455–469) construct, including economic, legal, ethical, and discretionary responsibilities was used. The main findings
are: (a) contrary to what has been presumed in the literature, the discretionary dimension includes two factors: CC toward
employees and toward community; (b) perceptions of CC explain 35% of unique variance of affective commitment; (c) the best
predictors are perceptions of economic and legal CC and, mainly, perceptions of discretionary CC toward employees; (d) the
perceptions of discretionary CC toward employees are significantly better predictors of affective commitment than are perceptions
of economic, ethical, and discretionary CC toward the community; (e) perceived inconsistency of the several CC dimensions
is detrimental to employees’ affective commitment. The study questions the four-dimensional model of the CC construct as operationalized
by Maignan et al., suggests that culture should be included as a moderating variable in future research, and stresses that
affective commitment may decrease when employees perceive that their organizations act upon the several areas of CC inconsistently. 相似文献
20.
Felipe Arias Fogliano de Souza Cunha Carlos Patricio Samanez 《Journal of Business Ethics》2013,117(1):19-36
In this article, we studied the Corporate Sustainability Index (ISE) of the Brazilian Mercantile, Futures and Stock Exchange (BM&FBOVESPA), with the main objective of analyzing the performance of sustainable investments in the Brazilian stock market, during the period from December 2005 to December 2010. To achieve this aim, we characterized ISE portfolios and we compared its performance with the IBOVESPA (representing the market portfolio) and other BM&FBOVESPA sectoral indices. In the performance comparison, we used level of liquidity, return and risk indicators, as well as the following measures: Sharpe, Treynor, Sortino, and Omega. Our results show that although sustainable investments have presented some interesting characteristics, such as increasing liquidity and low diversifiable risk, they did not achieve satisfactory financial performance in the analysis period. This indicates that the constraints imposed by this type of investment in capital allocation in Brazil may be harming their return and risk attractiveness. 相似文献