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61.
Two of the main forces driving European emigration in the late nineteenth century were real wage gaps between sending and receiving regions and demographic booms in the low‐wage sending regions. Our new estimates of net migration for the countries of sub‐Saharan Africa show that exactly the same forces driving African across‐border migration are at work today. The results suggest that rapid growth in the cohort of potential young emigrants, population pressure on the resource base, and slow economic growth are likely to intensify the pressure for migration out of Africa and into high‐wage OECD countries over the next two decades. 相似文献
62.
Biswal Pratap Chandra Kamaiah B. Panigrahi Prasanta Kumar 《Journal of quantitative economics》2004,2(1):133-146
The fluctuations in the rate of returns of the Bombay stock exchange are analyzed through wavelet transform. The fluctuations, in various time scales, naturally separated by the wavelets, are subjected to statistical analysis. The localization and multiresolution properties of the wavelets enable one to identify collective behaviour in the stock market and the extent of their influence at various time scales. The Gaussian nature of the rate of returns at certain scales and the periodic nature of the same, at other scales, are clearly brought out by this analysis. The utility of this approach for modeling purpose is also elucidated.
相似文献63.
Many employer-sponsored health plans and multi-employer health benefit trusts have seen an increase in medical child support orders (MCSOs), and they can anticipate receiving a greater number in the future. Once regulations are final for the national medical support notice (NMSN) required by the Child Support Performance and Incentive Act of 1998, plans should also begin receiving these. In preparation, plan administrators should ensure that they have proper procedures in place for determining whether MCSOs and NMSNs constitute QMCSOs. 相似文献
64.
J. HUSTON MCCULLOCH 《The Journal of Finance》1993,48(2):779-789
An example of a continuous time economy is given whose general equilibrium term structure of interest rates obeys the Expectations Hypothesis for continuously compounded interest rates and returns, contradicting the 1981 claim by Cox, Ingersoll, and Ross that such an economy is mathematically impossible. This example does not generate exploitable arbitrage opportunities of the type Cox, Ingersoll, and Ross claim must arise. The “Logarithmic Expectations Hypothesis,” as we call it, it therefore an acceptable benchmark from which to measure term premia in continuous time term structure modeling. 相似文献
65.
66.
TIMOTHY J. RICHARDS PAUL M. PATTERSON ABEBAYEHU TEGENE 《Contemporary economic policy》2007,25(3):309-324
Recent research shows that the dramatic rise in obesity in the United States is due more to the overconsumption of unhealthy foods than underactivity. This study tests for an addiction to food nutrients as a potential explanation for the apparent excessive consumption. A random coefficients (mixed) logit model is used to test a multivariate rational addiction model. The results reveal a particularly strong addiction to carbohydrates. The implication of this finding is that price-based policies, sin taxes, or produce subsidies that change the expected future costs and benefits of consuming carbohydrate-intensive foods may be effective in controlling excessive nutrient intake. ( JEL D120, I120, C230) 相似文献
67.
Hair JD 《Fund raising management》1999,30(8):16-18
One advantage of having an online shopping village attached to your not-for-profit organization's Web site is it gets supporters used to contributing online. If a consumer is willing to purchase over the Web, it's only a short leap to putting donations more directly to work for a favorite cause. 相似文献
68.
Beginning with Facebook's recent controversial “tweaks” to its privacy policy and its promise to support users against employers and others who attempt to compel users to divulge passwords, we critically review European Union (EU) and US digital privacy initiatives. Whereas the EU proposal relies on legislative regulation, the United States proposes industry self‐regulation partially enforceable by the Federal Trade Commission (FTC). We conclude that not only do the sharply differing EU and US approaches present significant problems of global digital interoperability, but neither proposal promises to result in practical and feasible consumer protection, at least not in the near term. Moreover, the EU proposal poses serious threats to the profitability of digital commerce. As an alternative, we propose a “third approach,” empowering the individual digital consumer/user through a personal online strategy we call “wide‐open privacy,” which provides security without sacrificing the transformative economic, cultural, and personal benefits of the Internet. © 2013 Wiley Periodicals, Inc. 相似文献
69.
Yueh-Neng Lin Shih-Kuo Yeh Shih-Ching Chuan Steven J. Jordan 《The Service Industries Journal》2013,33(13):2273-2288
This study proposes a linkage between intraday variables (signal amounts and signal duration) and the mispricing of Taiwan call warrant prices, based on the lower boundary condition of Merton [1973. Theory of rational option pricing. Bell Journal of Economics and Management Science, 4(1), 141–183] as modified by Galai [1978. Empirical tests of boundary conditions for CBOE options. Journal of Financial Economics, 9(2), 321–346]. Trading mispriced call warrants associated with a riskless hedging strategy over the period January 2004–December 2005 on average produces abnormal profits after taking into account transaction costs, as indicative of an inefficient market. 相似文献
70.
J.S. Toms 《Critical Perspectives On Accounting》2010,21(1):96-103
The paper extends Marx's law of value to include the effects of risk. It shows how risk has its origins in the labour process and is transferred between labour and capital on an unequal basis and between capitals on a zero sum basis. An empirical test is then presented, which shows that the employment of labour increases risk from the point of view of the investing capitalist. The conclusion is that the employment of labour is a curate's egg from capital's point of view. On the one hand it is essential for the production of sustainable surplus value and therefore for competitive advantage and capital accumulation. On the other hand employment of labour renders such accumulation inherently risky and therefore commensurately more costly to the rational capitalist investor. 相似文献