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21.
Economists often operate under an implicit assumption that the tastes of a decision maker are quite stable, while his beliefs change with the availability of new information. We show that for a general class of preferences, a separation of a key component of tastes, the utility function, from the other components of the representation is possible only if the decision maker's preferences satisfy a mild but not completely innocuous condition, called ‘certainty independence’. We also outline the axiomatic characterization of the preferences that obtain such separation, which are a subset of the biseparable preferences. 相似文献
22.
Bigerna Simona D’Errico Maria Chiara Polinori Paolo 《Environmental and Resource Economics》2022,83(2):445-479
Environmental and Resource Economics - Climate change and greenhouse gas emissions have become increasingly more pressing environmental concerns in European policy agenda. Environmental energy... 相似文献
23.
In this paper, we study the relationship between competition and economic growth using a model of economic development through the creation of new sectors. In our model, competition has both an intra- and an inter-sector component. We find that the best conditions for economic development are achieved when a suitable ratio of inter- to intra-sector competition is achieved. This ratio constitutes a compromise between providing a temporary monopoly to the first entrepreneur (low inter-sector competition) and creating enough imitation to expand the sector (intra-sector competition). 相似文献
24.
We consider an economy with asymmetric information and two types of agents, fully informed and uninformed. Uninformed agents update their information observing equilibrium prices and the equilibrium levels of other agents’ excess demand. We show that, for a generic set of economies, there are rational expectations equilibria which are partially revealing on an open, dense set of signals of positive Lebesgue measure, provided that the dimension of the signal space is sufficiently larger than the dimension of the commodity space. 相似文献
25.
In stochastic OLG exchange economies, we show that short-memory equilibria—the natural extension from deterministic economies of steady states, low-order cycles, or finite state-space stationary sunspots equilibria—fail to exist generically in utilities. As a result, even with independent and identically distributed exogenous shocks there is serial correlation in endogenous economic variables in equilibrium. This arises even if utilities are time-separable, some goods inferior, and there are no technological lags. Hence, the origins of economic fluctuations can be traced only to the demographic structure of a heterogeneous agent, multiple-good economy. 相似文献
26.
We provide a refoundation of the symmetric growth equilibrium characterizing the research sector of vertical R&D-driven growth models. We argue that the usual assumptions made in this class of models leave the agents indifferent as to where targeting research: hence, the problem of the allocation of R&D investment across sectors is indeterminate. By introducing an “?-contamination of confidence” in the expected distribution of R&D investment, we prove that the symmetric structure of R&D investment is the unique rational expectations equilibrium compatible with ambiguity-averse agents adopting a maxmin strategy. 相似文献
27.
The Monetary Policy of the European Central Bank 总被引:3,自引:0,他引:3
Paolo Surico 《The Scandinavian journal of economics》2007,109(1):115-135
The first six years of ECB monetary policy are examined using a general framework that allows central bankers to weight differently positive and negative deviations of inflation, output and the interest rate from their reference values. The empirical analysis on synthetic euro‐area data suggests that the objective of price stability is symmetric, whereas the objectives of real activity and interest‐rate stabilizations are not. Output contractions imply larger policy responses than output expansions of the same size, while movements in the interest rate are larger when the level of the interest rate is relatively high. The hypothesis of M3 growth‐rate targeting is rejected. 相似文献
28.
Paolo Liberati 《Review of Income and Wealth》2003,49(4):589-601
One vexed question of anti-poverty strategies is that of setting a reasonable poverty line. To escape its specification, recent developments by Yitzhaki and Slemrod (1991 ) have introduced the correspondence between non-intersecting concentration curves and poverty reducing directions of reforms. Makdissi and Wodon (2002 ) have derived consumption dominance curves for any order of restricted stochastic dominance. In this paper, consumption dominance curves are extended to subgroups of population. Empirical evidence of the approach will be shown using the 1997 data from Belarus, considering public subsidies on rents and utilities, health care and public transport in six groups of population. 相似文献
29.
Environmental and economic efficiency has being receiving growing attention among researchers. In general terms, this concept is related to the capability of the economic systems to employ natural resources efficiently, so as to increase economic and human wealth. This clearly implies that both the economic and ecological aspects of decisions ought to be considered. Bearing this in mind, this article considers economic and ecological performance together, by applying data envelopment analysis and the Malmquist productivity index to investigate the efficiency of the 20 Italian regions from 2004 to 2011. The results reveal that the northern regions have been more efficient than the southern ones, highlighting the strong geographical differences between the two. Furthermore, this article uses the grey system theory to forecast regional, economic and environmental efficiency. The results of the forecasting analysis show that the north–south duality remains strong and will possibly increase since the regions in the south get worse in term of environmental and economic efficiency. 相似文献
30.
Simone Gitto Paolo Mancuso 《International Journal of Production Economics》2012,135(1):403-411
This paper uses data envelopment analysis to assess the operational performance of 28 Italian airports during the period of 2000 through 2006. Recent developments in bootstrapping techniques are used to correct total factor productivity estimates for bias and to assess the uncertainty surrounding such estimates. This study found that the Italian airport industry experienced a significant technological regress, with few airports achieving an increase in productivity led by improvements in efficiency. Moreover, the paper shows that the form of ownership (public majority vs. private majority) of an airport management company does not significantly affect performance. In contrast, this type of the concession agreement has positive and significant effects on airport productivity. Finally, the paper highlights the existence of a productivity gap between airports located in the North-Central part of the country and those located in the south. 相似文献