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排序方式: 共有100条查询结果,搜索用时 15 毫秒
1.
In the paper by Melnikov and Petrachenko (Finance Stoch. 9: 141–149, 2005), a procedure is put forward for pricing and replicating an arbitrary European contingent claim in the binomial model with bid-ask spreads. We present a counter-example to show that the option pricing formula stated in that paper can in fact lead to arbitrage. This is related to the fact that under transaction costs a superreplicating strategy may be less expensive to set up than a strictly replicating one. 相似文献
2.
3.
Tomasz Piotr Wisniewski Brendan John Lambe Keshab Shrestha 《The Journal of Financial Research》2020,43(4):737-765
In this study, we extend the standard economic model of suicide by considering a new influential factor driving the voluntary death rate. Using an international sample, we estimate the model and document a robust and significant inverse relation between stock market returns and the percentage increase in suicide rates. Trends in male and female suicide are affected by market fluctuations, both contemporaneously and at a lag. This predictive quality of stock returns offers the potential to implement pro-active suicide prevention strategies for those who could be affected by the vagaries of the market and general economic downturns. 相似文献
4.
The paper is concerned with testing normality in samples of curves and error curves estimated from functional regression models. We propose a general paradigm based on the application of multivariate normality tests to vectors of functional principal components scores. We examine finite sample performance of a number of such tests and select the best performing tests. We apply them to several extensively used functional data sets and determine which can be treated as normal, possibly after a suitable transformation. We also offer practical guidance on software implementations of all tests we study and develop large sample justification for tests based on sample skewness and kurtosis of functional principal component scores. 相似文献
5.
This article examines the determinants of short-term wage dynamics, using a sample of large Hungarian companies for 1996–99. We test the basic implications of an efficient contract model of bargaining between incumbent employees and managers, which the data do not reject. In particular, there are structural differences between the ownership sectors consistent with our prior knowledge on relative bargaining strength and unionisation measures. Stronger bargaining position of workers leads to higher ability to pay elasticity of wages, and lower outside option elasticity. Our results indicate that while bargaining position of workers in domestic privatised firms may be weaker than in the state sector, the more robust difference relates to state sector workers versus privatised firms with majority foreign ownership. 相似文献
6.
This paper presents a PDE approach in a Markovian setting to hedge defaultable derivatives. The arbitrage price and the hedging strategy for an attainable contingent claim are described in terms of solutions of a pair of coupled PDEs. For some standard examples of defaultable claims, we provide explicit formulae for prices and hedging strategies. 相似文献
7.
In this paper, we develop a methodology for forecasting key macroeconomic indicators, based on business survey data. We estimate a large set of models, using an autoregressive specification, with regressors selected from business and household survey data. Our methodology is based on the Bayesian averaging of classical estimates method. Additionally, we examine the impact of deterministic and stochastic seasonality of the business survey time series on the outcome of the forecasting process. We propose an intuitive procedure for incorporating both types of seasonality into the forecasting process. After estimating the specified models, we check the accuracy of the forecasts. 相似文献
8.
We explore the country-specific institutional characteristics likely to influence an individual’s decision to become an entrepreneur.
We focus on the size of the government, on freedom from corruption and on “market freedom” defined as a cluster of variables
related to protection of property rights and regulation. We test these relationships by combining country-level institutional
indicators for 47 countries with working-age population survey data taken from the Global Entrepreneurship Monitor. Our results
indicate that entrepreneurial entry is inversely related to the size of the government, and more weakly to the extent of corruption.
A cluster of institutional indicators representing “market freedom” is only significant in some specifications. Freedom from
corruption is significantly related to entrepreneurial entry, especially when the richest countries are removed from the sample,
but unlike the size of government, the results on corruption are not confirmed by country-level fixed-effects models. 相似文献
9.
Joseph Plasmans Jacob Engwerda Bas van Aarle Tomasz Michalak Giovanni Di Bartolomeo 《Scottish journal of political economy》2006,53(4):461-484
This paper studies the institutional design of the coordination of macroeconomic stabilization policies within a monetary union in the framework of linear quadratic differential games. A central role in the analysis plays the partitioned game approach of the endogenous coalition formation literature. The specific policy recommendations in the European Economic and Monetary Union (EMU) context depend on the particular characteristics of the shocks and the economic structure. In the case of a common shock, fiscal coordination or full policy coordination is desirable. When anti‐symmetric shocks are considered, fiscal coordination improves the performance but full policy coordination does not produce further gains in policymakers' welfare. 相似文献
10.
In the reliability studies, k-out-of-n systems play an important role. In this paper, we consider sharp bounds for the mean residual life function of a k-out-of-n system consisting of n identical components with independent lifetimes having a common distribution function F, measured in location and scale units of the residual life random variable X
t
= (X−t|X > t). We characterize the probability distributions for which the bounds are attained. We also evaluate the so obtained bounds
numerically for various choices of k and n. 相似文献