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排序方式: 共有108条查询结果,搜索用时 15 毫秒
61.
We use a large scanner price dataset to study grocery price dynamics. Previous analyses based on store scanner data emphasize differences in price dynamics across products. However, we also document large differences in price movements across different grocery store chains. A variance decomposition indicates that characteristics at the level of the chains (as opposed to individual stores) explain a large fraction of the total variation in price dynamics. Thus, retailer characteristics are found to be crucial determinants of heterogeneity in pricing dynamics, in addition to product characteristics. We empirically explore how the price dynamics we document affect price index measures. 相似文献
62.
Tamotsu Nakamura 《Review of Development Economics》2002,6(1):39-47
The paper analyzes a simple differential game model of international technology transfer via foreign direct investment, in which a subsidiary of a multinational corporation and a host-country firm are engaged in a technology accumulation race. In contrast to previous works, it is shown that an elasticity of the foreign firm's marginal quasi-rent plays a key role in determining the effects of technology spillover and of efficiency of learning activities on the technology transfer: those are positive if it is larger than unity in absolute value, and vice versa. Other comparative static results are reported. 相似文献
63.
Shinsuke Nakamura 《Review of Economic Design》1998,3(2):159-165
In this note, we prove two impossibility results of Nash implementation in two-person economies. First, we will show the non-existence of continuous and balanced mechanisms which implement the Walrasian correspondence. Second, by adding a convexity assumption of mechanisms, we present the impossibility of continuous implementation of Pareto optimal and individually rational allocations in balanced way. Received: 16 April 1996 / Accepted: 25 April 1997 相似文献
64.
Bob Korkie Mansao Nakamura Harry J. Turtle 《International Review of Financial Analysis》2001,10(4):365
We estimate contingent claims that replicate monthly net asset value (NAV) payoffs from closed-end funds. A claim's theoretical value is obtained by martingale pricing methods. The resulting net present value (NPVS) sequence is the theoretical premia sequence that is compared to the actual market premia sequence. The theoretical premia, like actual premia, are uncorrelated with NAV returns and are positively autocorrelated due to autocorrelation in the pricing information. However, there is poor correspondence between the theoretical and actual premia that seems due to the market's systematic errors in estimating a fund's management value. Risky arbitrage may be available to insiders. 相似文献
65.
66.
This paper proposes a continuous-time term-structure model under stochastic differential utility with non-unitary elasticity
of intertemporal substitution (EIS, henceforth) in a representative-agent endowment economy with mean-reverting expectations
on real output growth and inflation. Using this model, we make clear structural relationships among a term structure of real
and nominal interest rates, utility form and underlying economic factors (in particular, inflation expectation). Notably,
we show that, if (1) the EIS is less than one, (2) the agent is comparatively more risk-averse relative to time-separable
utility, (3) short-term interest rates are pro-cyclical, and (4) the rate of expected inflation is negatively correlated with
the rate of real output growth and its expected rate, then a nominal yield curve can have a low instantaneous riskless rate
and an upward slope. 相似文献
67.
This study uses contingent valuation to measure Japanese customers' willingness-to-pay to maintain combinations of five telecommunication services that are considered substitutes if universal service is defined on the basis of functionality. The analysis revealed the following results. First, consumers are more willing to pay to retain voice communication services than data transmission services. Second, customers accept Internet Protocol telephony as a substitute for plain old telephone service (POTS) as a universal service, and they are willing to pay much more than Japan's current Universal Service Fund charge. Third, even when mobile phone service (MOB) is available, consumers will pay to retain fixed-line voice services. Finally, consumers have an equal desire to keep fiber-to-the-home (FTTH) and fixed-line voice services, but it is less than the demand for MOB. Thus, under the present definition of POTS as a universal service, FTTH could be considered as a basic telecommunication service. 相似文献
68.
Can smaller classes lead to better educational outcomes and greater equality in achievement? We estimate the causal effects of class size on achievement tests by using discontinuous changes in class size under the Japanese public compulsory education system. We employ a value‐added model that uses achievement tests conducted at two different times during the same school year. Our results show that a reduction in class size has significantly positive effects on Japanese language test scores in the sixth grade, especially at schools in wealthy areas. However, we find no evidence that a universal small class policy closes the achievement gap among schools. 相似文献
69.
70.
W. Erwin Diewert Takanobu Nakajima Alice Nakamura Emi Nakamura Masao Nakamura 《The Canadian journal of economics》2011,44(2):451-485
Abstract There is policy interest in factoring productivity growth into technical progress and returns to scale components. Our approach uses exact index number methods to reduce the parameters that must be estimated, and allows us to exploit the cross‐sectional dimension of plant‐level panel data. We show that the same equation can also be used to estimate ‘Harberger’ scale economies and technical progress indicators that require fewer assumptions. Estimates of the elasticity of scale for Japanese establishments in three major industries over 1964–88 are presented. Our study spans the high growth era of the 1960s, two oil shocks, and other exogenous shocks. 相似文献