This paper examines the impact of the concentration of the property insurance industry on economic growth in China. We first compute the Herfindahl-Hirschman Index (HHI) for the Chinese property insurance industry and establish a two-step system of generalized methods of moments (Two-Step SYS-GMM) estimation to compute the economic effect using a unique data set from the years 1980 to 2014. The...

I examine how mergers affect performance in network industries. Network providers choose quality for communication within the provider’s own network, quality for communication between providers’ networks, and output. Cross-border mergers provide firms an incentive to increase output because merged firms internalize positive network externalities. Several results modify conclusions in the curren...

In studies on the nutritional requirements of Bacillus subtilis during mycobacillin formation in complex media, it was observed that the addition of a mixture of salts (KH2PO4, MgSO4, FeSO4, and MInSO4) to a casein hydrolyzateglucose medium greatly enhanced mycobacillin formation (AIajumdar and Bose, 1959). Reports by a number of workers (Jansen and Hirschman, 1944; Hendlin, 1949) indicate that...

Economists have long used state-collected discharge data to construct Hirschman-Herfindahl (HH) indices measuring hospital competition. Since data are collected to determine the facility providing the service rather than ownership, the difference between the number of reporting facilities and the number of competitors has grown over time due to mergers and networking activities. Consequently, t...

The first paper, by Seneff, Hirschman and Zue, concerned the ATIS domain. The authors state what seems, after it is pointed out, an obvious truth, but which too few system builders seem to understand: when attempting a project like ATIS, the time to worry about the kinds of interaction that will take place in a dialogue is at the very beginning of the project. The MIT ATIS system has not yet be...