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991.
Jan Wenzelburger 《Annals of Finance》2010,6(2):221-239
This paper resolves two issues regarding the traditional capital asset pricing model with one risk-free asset which seem to
have been overlooked in the literature. First, it provides an elementary and complete proof of the two-fund separation theorem
which accounts for the fact that asset demand may become undefined if the limiting slopes of the investor’s indifference curves
are finite. Second, it shows that an additional limiting condition on investors’ risk aversions is generally necessary to
guarantee existence of an equilibrium. Moreover, a generalized existence result is formulated which includes investors who
in equilibrium may not invest in risky assets and a simple condition ensuring positive equilibrium asset prices is given. 相似文献
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Using a panel of 69 countries during 1981 and 2005, we investigate the role of institutions in determining foreign direct
investment (FDI). We find that institutions are a robust predictor of FDI and that the most significant institutional aspects
are linked to propriety rights. Using a novel data set, we also study the impact of institutions on FDI at the sectoral level.
We find that institutions do not have a significant impact on FDI in the primary sector but that institutional quality matters
for FDI in manufacturing, and particularly in services. 相似文献
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The price of parking is often considered an important tool with which to influence transport choice but, since many local authorities have limited control over off-street charges and since parking charges have no direct impact on through traffic, its influence on overall travel demand may be limited. Road user charges, on the other hand, do appear to offer an effective means of influencing overall demand. The problem is that public acceptance of such charges is low unless some obvious “carrot” can be identified. This paper explores the possibility that the removal of parking charges might be that “carrot”. Our analysis suggests that, although the removal of parking charges would reduce revenues and dilute the reduction in demand caused by the introduction of road charges, the combined effect might, in certain circumstances, be more beneficial to the local economy and might still yield a net increase in revenue. Given the incidence of impacts, it also appears that a combined scheme would be more equitable and might stand a greater chance of achieving public acceptance than a more conventional road charging scheme. The paper identifies the circumstances in which a combined scheme might work well and outlines the detailed analysis that would be necessary to confirm this. 相似文献