A regional analysis of food consumption in China

Two “laws” are used to describe the budget shares of staple food, other food, and non-food in 28 regions in China: Working's model, which describes the budget share of (total) food as a declining linear function of the logarithm of total consumption expenditure, and a second model that describes the ratio of the budget shares of staple and other food as a double-log function of total consumption expenditure. Staple food appears to be an inferior good in the richest regions but not in the other regions.     

Pricing Mortgage Originations

The general structure of observed mortgage loan contracts and the structure of firms in the industry can be explained in terms of competitive markets and rational expectations. It is not necessary to invoke disequilibrium, credit-rationing theories. Collateralization, covenants, downpayments, and other noninterest rate provisions in loan contracts are efficient mechanisms to control the conflict of interest between the borrower and lender. Finally, there are constraints lenders place on the range of contractual provisions offered because of interdependencies in payoffs across contracts and the costs they face associated with insolvency.     

Antitrust and regulation: Forestalling competition in the telecommunications terminal equipment market

This article examines how AT&T responded to competition in the terminal equipment market by requiring a telephone company provided connecting arrangement. We test the hypotheses of whether connecting arrangements were used to protect the integrity of the system or to forestall competition. Through analysis of various antitrust cases, we conclude that AT&T attempted to monopolize the market through the connecting arrangement requirement. This conclusion is important because it suggests that a regulated firm has the ability to use its market power to thwart competition in non-regulated markets.     

FURTHER INSIGHT INTO THE STANDARDIZED UNEXPECTED EARNINGS ANOMALY: SIZE AND SERIAL CORRELATION EFFECTS

Studying size and serial correlation effects, the authors examine why portfolios selected on the basis of standardized unexpected earnings (SUEs) exhibit excess returns. Results of the study indicate that the SUE effect and the size effect are independent anomalies; however, a more plausible explanation of the SUE effect may involve serial correlation of SUEs. The authors demonstrate that more than half of the post-announcement responses to current quarter earnings may actually be pre-announcement adjustments to next quarter's earnings.     

The Role of Information and Influence in Social Networks

A bstract .   This article examines two mechanisms through which social networks are related to job mobility: (1) access to diverse sources of information about job openings and (2) nonredundant sources of influence. Using data on job changing and social networks among television station managers, we assess the extent to which job information and influence variables mediate the relationship between social network structure and getting a better job. Results indicate that there is an association between job mobility and having nonredundant contacts, but our measures of the information and influence mechanisms are not significant mediators. We conclude by reexamining the network-resource model that forms the basis for much of the research on the relationship between social networks and job mobility.     

FINANCING SATELLITE OUTPATIENT CARE IN RURAL HOSPITALS

Providing health care to low income or elderly residents of rural areas remains a serious national health care problem in the United States. This case study evaluates an intervention for primary outpatient care to a particular class of patients – veterans – and shows how it can benefit them. Locating the outpatient clinic in a struggling rural hospital makes an outreach by the urban veterans hospital financially feasible and is profitable for the rural hospital.