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631.
632.
Ulrich Hiemenz 《Intereconomics》1986,21(4):176-180
The benefits of development aid have been increasingly called into question in recent times. In such aid superfluous or indeed harmful? Ulrich Hiemenz and Franz Nuscheler address this issue in the following two contributions. 相似文献
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Fictitious Play is the oldest and most studied learning process for games. Since the already classical result for zero-sum games, convergence of beliefs to the set of Nash equilibria has been established for several classes of games, including weighted potential games, supermodular games with diminishing returns, and 3×3 supermodular games. Extending these results, we establish convergence of Continuous-time Fictitious Play for ordinal potential games and quasi-supermodular games with diminishing returns. As a by-product we obtain convergence for 3×m and 4×4 quasi-supermodular games. 相似文献
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Hans Ulrich Buhl 《Journal of Macroeconomics》1984,6(4):447-456
Contrary to most of the literature on optimal economic growth a discrete rather than a continuous model is investigated. It is shown that in such a discrete model it is easy to account for relatively freely changing functions and parameters. Thus, the production function, labor, the investment ratio, and the parameters for time preference, marginal utility, and depreciation are all allowed to depend on time. Using discrete dynamic programming methods, optimal investment policies are determined explicitly. These generalize important results from previous literature on optimal economic growth. 相似文献
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Using unit labor cost (ULC) data from Euro area countries as well as US States and German Länder we investigate inflation convergence using different approaches, namely panel unit root tests, cointegration tests and error-correction models. All in all we cannot reject convergence of ULC growth in EMU. However, country-specific deviations from the rest of the currency union are much more pronounced and much more persistent in Europe than in the US or Germany. This holds before and after the introduction of the common currency. Hence, asymmetric shocks in the future might take a long time to dissipate. 相似文献
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We introduce product differentiation into the analysis of price competition in markets where suppliers test customers in order to assess whether they will pay for received goods or services. We find that, if the degree of differentiation is sufficiently high, suppliers may improve the average probability that their clientele will pay by charging higher prices. This helps suppliers to sustain high prices in equilibrium. Moreover, endogenizing locations in product space, we demonstrate that the high price level can be implemented in a pure-strategy subgame-perfect equilibrium with a high degree of differentiation. This is in contrast to the original Hotelling model with linear travel costs where a pure-strategy subgame-perfect equilibrium fails to exist. 相似文献
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