In Chan (1996), I suggest that a contest between internal and external candidates for a position within a firm is generally biased in favor of the former to maintain work incentive for existing workers. This implies that a successful external candidate tends to be superior in ability relative to...

"This article proposes a theory of group formation based on the motive to seek informed opinion. Because an individual evaluates whether others are informed or not using his own priors, he identifies people with similar beliefs to be more informed than those with different beliefs. The result is...

In a market with heterogeneous individuals, the fact that a particular group of individuals are the consumers of a particular product already indicates that there exist systematic differences between them and the average person. Simple tools from statistical theory are used here to analyze the...

This paper takes Gary Becker's efficient marriage market hypothesis at face value and directly confronts it with data from Hong Kong. The theory of optimal assignment is used to develop an empirical model of spouse selection, which resembles a Tobit model. This model can address positive or...

The market for resident domestic helpers offers a rare opportunity where the surplus from employment relationship can be quantitatively measured for each individual employee. Using the difference between employer's cost of time and employee's wage as a measure of rent, it is found that wages for...

We examine how no-fault divorce law affects the age at first marriage, when everyone has a different value of marriage. The heterogeneity of individual values implies an unambiguous negative effect on the variance of marriage age. We test this hypothesis with marriage records from 1970 to 1995....