A comparison of alternative methods of updating input-output coefficients

In recent years there has been a growing number of input-output models of economies ranging in scale from the rural to the national. While offering invaluable insights into the interaction of sectors within an economy, the input-output model suffers from the fact that its coefficient values are altered over time due particularly to technological change. Two of the prominent techniques designed to update these technical coefficients, the RAS and linear programming methods, are compared herein with regard to changes in U.S. national coefficients between 1963 and 1967. Suggestions for improvements to the latter method are outlined.     

An axiomatic approach to \boldsymbol{\varepsilon}-contamination

Summary.  Suppose that an economic agent is 100% certain that uncertainty she faces is characterized by a particular probability measure, but that she has a fear that, with 100% chance, her conviction is completely wrong and she is left perfectly ignorant about the true measure in the present as well as in the future. This situation is often called -contamination of confidence. The purpose of this paper is to provide a simple set of behavioral axioms under which the decision-makers preference is represented by the Choquet expected utility with the -contamination of confidence.Received: 25 November 2002, Revised: 15 November 2004, JEL Classification Numbers:   D81. Correspondence to: Hiroyuki OzakiWe are grateful to an anonymous referee. The referees comments greatly improved the exposition of the paper. The work reported here is partially supported by a grant from the Economic and Social Research Insitute, the Cabinet Office, the Government of Japan.     

THE DEFECTIVE DESIGN OF FEDERAL DEPOSIT INSURANCE

Deposit insurance funds, especially the Federal Savings and Loan Insurance Corporation, are currently in visible trouble. Two central defects of the existing deposit insurance system are identified: (1) mispricing of the insurance premiums and (2) incentives for both the industry and the insurance agencies to postpone recognizing and realizing losses.
Insurance premiums are mispriced because they are assessed at the same rate for all institutions, which creates a bias for banks to take greater risks. Practical difficulties of setting an appropriate risk-based premium for each bank are real but not necessarily insurmountable. In particular, the sale by the bank of unsecured and uninsured debt could provide a market measure of default risk, under a given failure rule.
The choice of a failure rule is also a critical matter. Current failure rules are poorly defined and permit insolvent institutions to continue in operation. Specifying a market value test of insolvency in the statutes would be helpful, but it would have to be supported by market-value accounting requirements and stronger pressures on banking authorities not to defer action.     

A stochastic production function for machine repair

Although work by Levhari and Sheshinski (1970) and Syrquin (1972) suggests that general functional forms, such as the Cobb–Douglas and CES, accurately approximate a machine-repair stochastic production process, this paper shows that these authors have not adequately captured the stochastic nature of the production process. More importantly, while general forms are convenient and widely employed, this paper argues that there is a more direct method for determining the properties of the production process.     

ECONOMIC VALUATION OF ACID DEPOSITION DAMAGES

This paper summarizes estimates of the monetary value of the physical damages that acid deposition causes in the United States. These estimates were developed for the Interim Assessment of the National Acid Precipitation Assessment Program (NAPAP) but were not included in the final version of the assessment report. This paper describes this research and discusses why these estimates received so little support within the NAPAP. It outlines the role of economics in the current Integrated Assessment and discusses the extent to which lessons learned earlier have been integrated into the current assessment.