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51.
China’s pension system is in need of comprehensive reform. One measure on which we focus is to increase the retirement age. It is likely that a change in retirement age will have significantly different effects across China’s regions. Interregional disparities are already very substantial in China and it will be important to know how changes in pension arrangements will affect disparities. We consider four policies to increase the retirement age from 60 to 61. They differ according the use made of the extra revenue generated by the policy. All four policies increase welfare and reduce the interregional welfare gap. 相似文献
52.
There are still significant gaps in our knowledge of the relationship between stock prices and exchange rates; not least, the ambiguity about the sign of the coefficient linking them. One explanation which we explore in the Australian context in this paper is the omission of commodity prices. We show that a relationship which omits commodity prices performs poorly but, once commodity prices are added, our results are plausible and robust. We also throw light on the commodity‐currency issue: the link from the exchange rate to commodity prices is stronger and more consistent than that in the opposite direction. 相似文献
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Nicolaas Groenewald & Patricia Fraser 《Journal of Business Finance & Accounting》2000,27(7&8):953-982
CAPM betas are generally estimated from historical data and applied to a future period. There is widespread evidence that the CAPM betas vary considerably over time and this raises two questions: can this variation be explained and can it be forecast better than the 'five-year rule of thumb' (i.e using the most recently estimated beta)? We estimate time-varying betas and explain the time-variation in the betas using regression models which we subsequently use for forecasting. We find that forecasting equations have good explanatory power but that their forecasts are dominated, on average, by the five-year rule of thumb. 相似文献
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D. van Blom 《De Economist》1912,61(1):488-502
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