交换经济中的激励比率
The Incentive Ratio in Exchange Economies
摘要：
激励比率衡量战略行为的效用收益。在没有任何设置限制的情况下，线性、Leontief和Cobb-Douglas交易所市场的比率是无界的，这表明操纵均衡是一项值得的努力，即使在计算上具有挑战性。即使代理人只是误报了他们的效用函数，这种无限的改进也可以实现。这与费舍尔市场以前的结果形成了鲜明的对比。当柯布-道格拉斯设置更严格时，最大效用收益受商品数量的限制。通过一个例子，我们表明，这是可能的，超过一个已知的上限的费雪市场在交换经济。
英文摘要：
The incentive ratio measures the utility gains from strategic behaviour. Without any restrictions on the setup, ratios for linear, Leontief and Cobb-Douglas exchange markets are unbounded, showing that manipulating the equilibrium is a worthwhile endeavour, even if it is computationally challenging. Such unbounded improvements can be achieved even if agents only misreport their utility functions. This provides a sharp contrast with previous results from Fisher markets. When the Cobb-Douglas setup is more restrictive, the maximum utility gain is bounded by the number of commodities. By means of an example, we show that it is possible to exceed a known upper bound for Fisher markets in exchange economies.
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