The Determinants of Firm Profitability in Australian Manufacturing

This study provides new evidence on the determinants of the profitability of Australian manufacturing firms by analyzing a unique firm-level data set of firm performance over the period 1984-93. The panel nature of the data permits the estimation of dynamic profitability models over the business cycle, to test both the persistence and cyclicality of firm profitability. Econometric results suggest that lagged profitability is a significant determinant of current profit margins, and that industry concentration is positively related to firm profit margins. Also, profit margins are found to be procyciical in concentrated industries but counter-cyclical in less concentrated industries.     

Costs under Regulation and Deregulation: The Case of US Passenger Airlines*

Privatization, the removal of regulatory control and similar changes in property rights within firms can be expected to shift cost functions downward and permit increased output, lower final service prices and more efficient resource allocation The US Airline Deregulation Act of 1978 was clearly expected to have these effects. This paper investigates whether the widely anticipated reduction in costs following the Airline Deregulation Act of 1978 actually occurred. We utilize an empirical procedure that explicitly takes the multi-product characteristics into account and identifies the various sources of changes in costs. The change in airline's costs are decomposed into components and separately measured to identify the effects attributable to deregulation A number of other countries are now considering important changes in the public ownership and control of their airline industries and a quantitative assessment of the actual effect of US deregulation on costs may be thought of as providing lower bound estimates of what might be expected in other countries.     

EMPIRICAL IMPACT OF PUBLIC INFRASTRUCTURE ON THE JAPANESE ECONOMY*

We study the impact of public capital investment on individual sectors of the Japanese economy using time‐series data for the period of 1970–1998. We employ a production function approach and also estimate a dynamic VAR/ECM model. We find significant differences in the employment effects, output effects and private investment effects across sectors. Public capital investment has a positive effect on employment in the finance, insurance and real estate (FIRE), manufacturing, construction and utilities sectors; on private investment in the FIRE, agriculture, transportation, trade and services sectors; and on output in the mining, FIRE, trade and manufacturing sectors.