I study credence goods markets when there are both selsh and conscientious experts. The selfish expert is a prot maximizer. The conscientious expert wants to maximize prot and repair the consumer's problem. There are two classes of equilibria: uniform-price equilibria and nonuniform-price...

We study delegating a consumer's treatment plan decisions to an altruistic physician. The physician's degree of altruism is his private information. The consumer's illness severity will be learned by the physician, and also become his private information. Treatments are discrete choices, and can...

We explain why a durable-goods monopolist would like to create a shortage during the launch phase of a new product. We argue that this incentive arises from the presence of a second-hand market and uncertainty about consumers׳ willingness to pay for the good. Consumers are heterogeneous and...

A monopolist launches a new product to distinct markets. The monopolist does not know the quality of the product while consumers in each market receive some private information about the quality. We study how the monopolist may in°uence consumer learning by manipulating the launching sequence...

In this work, we discuss the rate of convergence of one-dimensional random walks in a random environment. Using the hitting time decomposition, we prove that the speed of escape of random walks satisfies the quenched law of the iterated logarithm in a standard way.

A client has a problem, but does not know whether it is serious or minor. She consults an expert who can correctly diagnose and fix her problem. This paper characterizes the equilibrium pricing and recommendation strategies of an expert under the assumptions that i) the type of treatment is...

In China and some other developing countries' public health sectors, many patients give their doctors a payment outside the official channel before a major treatment. This secret payment has been documented as informal payment in the literature. We argue that the fundamental cause for informal...

We study delegating a consumer's treatment plan decisions to an altruistic physician. The physician's degree of altruism is his private information. The consumer's illness severity will be learned by the physician, and also will become his private information. Treatments are discrete choices,...