Optimal Regulation Under Uncertainty
研究需求不确定时的价格监管问题,指出现有方法无法兼顾效率与投资者公平回报,并构建一个融合金融市场理论与企业理论的模型,证明监管者能设定最低价格并引导企业选择最优技术。
ABSTRACT This paper is concerned with the problem of price regulation when demand is uncertain. Uncertainty gives rise to substantial difficulties in determining both the return a firm's owners should be provided and a set of prices capable of producing that return. We argue that conventional approaches to price regulation are incapable of attaining the economically desirable objectives of efficiency and an equitable return to investors. The deficiencies in current practices are attributable to the separation of the risk measurement‐return determination and price setting activities in the conventional approach. We present a model of the regulated firm that synthesizes contemporary financial market theory and the theory of the firm under uncertainty. 1 In our approach, the income stream produced by the firm is valued ex ante in the financial market according to investors' perceptions and preferences over riskreturn characteristics. We portray the firm as producing risk and return by choosing among available production technologies to maximize its market value, given the prices set by regulators. Within this framework, it is shown that regulators can choose the lowest prices consistent with an equitable return to investors. We also show that prices so chosen induce the choice of the optimal technology by the firm.