ASSESSING THE COMPETITION FACED BY OIL PIPELINES

This paper assesses the competition faced by oil pipelines. It also uses a new procedure and new data to test whether oil pipeline markets are competitive or monopolistic, under standard definitions. The key innovation of the paper is a new approach to the definition of the relevant market(s) in which oil pipelines operate. While recognizing that pipeline monopsony also could be a problem under certain conditions, the paper argues that these conditions are unlikely to arise and that if they do, it is unclear whether pipeline owners would be in a position to exploit them. The study offers new evidence to fuel the 80-year-old debate over pipeline rates and regulation.     

A note on the statistical properties of aggregate q measures

Many different measures of Tobin's q have been proposed which differ in measurement methods and data sources. This paper evaluates the similarities and differences in the statistical properties of the different measures using ARIMA and factor analysis methods. The statistical properties of average and marginal q measures are found to be quite different.     

A note on the independence of irrelevant alternatives in probabilistic choice models

The purpose of this note is to show that there is no necessary relationship between the independence of irrelevant alternatives (IIA) property and stochastic independence of the errors in probabilistic choice models.     

A Note on Causality Between Money,Wages and Prices in Australia*

Lead and lag relationships between money, wages. and prices are examined using Australian data. Granger causality tests support univariate causality running from money to both wages and prices. This result is consistent with a monetarist explanation of inflation.     

A reconciliation of recent results in optimal taxation theory

The recent papers by Guesnerie and Diewert on tax reforms are interpreted as contributions to the characterization of second-best optima. This paper demonstrates that when it is possible to achieve any feasible direction of change in supplies by a differential change in producer prices, there are unique producer support prices. Under these circumstances, the apparent differences between Guesnerie and Diewert are reconciled. Optimality conditions with nonunique support prices are also considered.     

Money,working capital and production in a developing economy: A disequilibrium econometric model of production for India, 1950–1980

The paper formulates and estimates for India for the period 1950–1980 an aggregate production function wherein the supply of real money balances in the economy appears as a limitational factor of production. The rationale for the formulation is argued from the importance of working capital funds in organising production, and how the supply of money, or the lack thereof, may constrain its availability in a financially underdeveloped economy characterized by imperfect capital markets.Comments and suggestions by annonymous referees for the journal as well as by the participants in the seminar at the Institute of Economic Growth, Delhi, India and the session on money and production at the Windsor meetings of the Canadian Economic Association are gratefully acknowledged. Thanks are also due Mr. Salah Foda for programming assistance.