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141.
We provide specific qualifications in order that Kuhn–Tucker type Euler equations and transversality conditions at infinity
hold in stochastic equilibrium models with heterogeneous agents and where assets are traded in sequential markets. It is not
assumed that uncertainty is modeled as an event-tree structure or that preferences are necessarily bounded. We also describe
an important class of preferences based on bounded relative risk aversion which yields relevant simplifications. Our results
are used to establish conditions that rule out asset pricing bubbles. Specific examples of economies with bubbles are also
discussed.
Received: 28 January 2002 / Accepted: 19 July 2002
We are grateful to the editor and an anonymous referee for their valuable comments. This research was partially supported
by MURST (Italy), National Group on “Nonlinear Dynamics and Stochastic Models in Economics and Finance”. 相似文献
142.
This article investigates the role of beliefs over monetary policy in propagating the effects of monetary policy shocks within the context of a dynamic, stochastic general equilibrium model. In our model, monetary policy periodically switches between low and high money growth regimes. When individuals are unable to observe the regime directly, they form inferences over regime‐type based on historical money growth rates. For an empirically plausible money growth process, beliefs evolve slowly in the wake of a regime change. As a result, our model is able to capture some of the observed persistence of real and nominal variables following such a regime change. 相似文献
143.
The right to the city 总被引:1,自引:0,他引:1
David Harvey 《International journal of urban and regional research》2003,27(4):939-941
The right to the city is not merely a right of access to what already exists, but a right to change it. We need to be sure we can live with our own creations. But the right to remake ourselves by creating a qualitatively different kind of urban sociality is one of the most precious of all human rights. We have been made and re‐made without knowing exactly why, how, and to what end. How then, can we better exercise this right to the city? But whose rights and whose city? Could we not construct a socially just city? But what is social justice? Is justice simply whatever the ruling class wants it to be? We live in a society in which the inalienable rights to private property and the profit rate trump any other conception of inalienable rights. Our society is dominated by the accumulation of capital through market exchange. To live under capitalism is to accept or submit to that bundle of rights necessary for endless capital accumulation. Free markets are not necessarily fair. Worse still, markets require scarcity to function. The inalienable rights of private property and the profit rate lead to worlds of inequality, alienation and injustice. The endless accumulation of capital and the conception of rights embedded threin must be opposed and a different right to the city must be asserted politically. Derivative rights (like the right to be treated with dignity) should become fundamental and fundamental rights (of private property and the profit rate) should become derivative. But new rights can also be defined: like the right to the city which is not merely a right of access to what the property speculators and state planners define, but an active right to make the city different, to shape it more in accord with our heart's desire, and to re‐make ourselves thereby in a different image. 相似文献
144.
We examine developing countries which have institutional quality ratings for the effects of exchange rate rigidity on inflation.
The level of institutional development exerts no effect on the impact of currency regimes. However, the interaction of institutional
quality and exchange rates has, in the most plausible specifications, a negative impact on inflation. This suggests that fixed
exchange rates exert at most a contingent effect on inflation, and indicates that countries in Eastern Europe and Latin America contemplating currency pegs would be
better off improving institutional quality prior to adopting the euro or dollar and expecting a large subsequent disinflationary
effect.
JEL no. F31, O11 相似文献
145.
The neutral architecture of the Internet is being challenged by various parties, such as network operators providing the connections to end-users, who are interested in gaining control of the information exchanged over the Internet. What are the effects on competition and welfare of such practices? Currently, there exists very little economic theory on network neutrality. This paper provides a preliminary analysis of the type of economic modeling that can address network neutrality, as well as of the type of results that can be expected. 相似文献
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Richard P. O’Neill Emily Bartholomew Fisher Benjamin F. Hobbs Ross Baldick 《Journal of Regulatory Economics》2008,34(3):220-250
The general design for the real-time electricity market presented in this paper optimizes and prices both real and reactive
power simultaneously in an AC setting, where all assets—generation, load and transmission—are allowed to bid and are financially
settled at the locational price times energy consumed or produced. The result is that transmission lines are compensated for
both capacity and admittance, providing incentives for efficient operation of transmission-related assets such as FACTS devices,
if price-taking behavior is assumed. Losses are incorporated into the design and become an operating cost for transmission.
The market design is shown to be revenue neutral and, under some assumptions, nonconfiscatory.
相似文献