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61.
Francesca Biagini 《Decisions in Economics and Finance》2002,25(1):1-17
The mean-variance hedging approach for pricing and hedging claims in incomplete markets was originally introduced for risky
assets. The aim of this paper is to apply this approach to interest rate models in the presence of stochastic volatility,
seen as a consequence of incomplete information. We fix a finite number of bonds such that the volatility matrix is invertible
and provide an explicit formula for the density of the variance-optimal measure which is independent of the chosen times of
maturity.
Finally, we compute the mean-variance hedging strategy for a caplet and compare it with the optimal stategy according to the
local risk minimizing approach.
Received: 14 July 2000 / Accepted: 10 April 2001 相似文献
62.
Michael Rauscher 《The German Economic Review》2007,8(1):28-40
Abstract. The paper analyses the impact of tax competition on innovation in the public sector. It is shown that the effects of increased mobility of the tax base on innovation and growth are ambiguous. The negative relationship is more likely, however. Moreover, it is shown that a Leviathan government may be induced to spend a larger share of its budget on unproductive activities. 相似文献
63.
Clive D. Fraser 《Journal of Economic Theory》2005,125(2):194-197
This note corrects a slip in Fraser's (J. Econ. Theory 90 (2000) 204-221) treatment of the necessary condition for partial separation of efficiency from distribution in providing a club good. His corrected Theorem 1 shows that many families of utility function can generate partial (and total) separation, thereby considerably extending the scope of his analysis. 相似文献
64.
Price and quantity regulation in general equilibrium 总被引:1,自引:0,他引:1
David L. Kelly 《Journal of Economic Theory》2005,125(1):36-60
We consider a general equilibrium model with a production externality (e.g. pollution), where the regulator does not observe firm productivity shocks. We examine quantity (permit) regulation and price (tax) regulation. The quantity of permits issued by the regulator are independent of the productivity shock, since shocks are unobserved. Price regulation implies use of the regulated input is an increasing function of the productivity shock because firms take advantage of a good productivity shock by increasing input use. Thus price regulation generates higher average, but more variable, production. Therefore, we show that in general equilibrium the relative advantage of quantity versus price regulation depends not only on the slopes of marginal benefits and costs, but on general equilibrium effects such as risk aversion. The general equilibrium effects are often more important than the slopes of the marginal benefits and cost curves. In the simplest model, a reasonable risk aversion coefficient implies quantity regulation generates higher welfare regardless of the benefit function. 相似文献
65.
Fiscal stabilizations: When do they work and why 总被引:1,自引:0,他引:1
Silvia Ardagna 《European Economic Review》2004,48(5):1047-1074
This paper studies the determinants and channels through which fiscal contractions influence the dynamics of the debt-to-GDP ratio and GDP growth. Using data from a panel of OECD countries, the paper shows that the success of fiscal adjustments in decreasing the debt-to-GDP ratio depends on the size of the fiscal contraction and less on its composition. The rate of growth of output matters too, but higher GDP growth does not drive the success of a fiscal stabilization. In contrast, whether a fiscal adjustment is expansionary depends largely on the composition of the fiscal maneuvre. In particular, stabilizations implemented by cutting public spending lead to higher GDP growth rates. The effects of the composition on growth work mostly through the labor market rather than through agents’ expectations of future fiscal policy. Finally, the evidence suggests that successful and expansionary fiscal contractions are not the result of accompanying expansionary monetary policy or exchange rate devaluations. 相似文献
66.
Pension Reform, Capital Markets and the Rate of Return 总被引:1,自引:0,他引:1
Axel Börsch-Supan Florian Heiss Alexander Ludwig Joachim Winter 《The German Economic Review》2003,4(2):151-181
Abstract. This paper discusses the consequences of population aging and a fundamental pension reform – that is, a shift towards more pre‐funding – for capital markets in Germany. We use a stylized closed‐economy, overlapping‐generations model to compare the effects of the recent German pension reform with those of a more decisive reform that would freeze the current pay‐as‐you‐go contribution rate and thus result in a larger funded component of the pension system. We predict rates of return to capital under both reform scenarios over a long horizon, taking demographic projections as given. Our main finding is that the future decrease in the rate of return is much smaller than often claimed in the public debate. Our simulations show that the capital stock will decrease once the baby‐boom generations enter retirement, even if there were no fundamental pension reform. The corresponding decrease in the rate of return, the direct effect of population aging, is around 0.7 percentage points. While the capital market effects of the recent German pension reform are marginal, the rate of return to capital would decrease by an additional 0.5 percentage points under the more decisive reform proposal. 相似文献
67.
Bruno De Borger 《European Journal of Political Economy》1997,13(4):765-781
The purpose of this paper is to investigate the impact of externalities on pricing decisions by a public or a private regulated firm selling both final and intermediate goods. The externalities generate feedbacks in demand that affect both consumers and producers. The model is very general in that it does not impose constant returns to scale on private production, allows for distributional effects of both the publicly determined prices and private sector profits, and captures the general equilibrium effects of public pricing. Socially optimal pricing rules are derived, and the relation of the results with previous models of pricing in the presence of externalities is investigated. 相似文献
68.
Peter Egger Mario Larch Michael Pfaffermayr Hannes Winner 《The Canadian journal of economics》2006,39(3):901-931
Abstract . This paper investigates the effect of tax treaties on bilateral stocks of outward FDI. For this purpose we employ a numerically solvable general equilibrium model of trade and multinational firms to study the impact of tax treaties on both welfare and outward FDI. The model indicates under which factor endowment configurations countries gain in welfare when implementing a tax treaty. This motivates an empirical specification of the endogenous selection into implementing new tax treaties. Using data of bilateral OECD outward FDI between 1985 and 2000, we find a significant negative impact of newly implemented tax treaties on outward FDI stocks. 相似文献
69.
70.
Over the last decade, the public sector in Mexico experienced substantial fiscal reform, divestiture of public enterprises,
and the elimination of many regulations affecting pay and employment. This study analyzes the changes in the public/private
sector differences in wages during the 1987–1997 period. The results from analyzing microdata from the Encuesta Nacional de
Empleo Urbano show that relative public sector wages increased from 1987 to 1997. Most of the relative wage increase in the
public sector can be explained by increases in the price of skills and by changes in sorting across sectors. The results have
important public policy implications since they suggest that public sector workers earn more and their wages have grown faster
than those of their private sector counterparts. As such, policies contemplating public sector reform should take into account
the effect of these measures on the inter-sectoral income distribution and the overall economic growth.
First version received: April 2000/Final version received: December 2000 相似文献