TECHNICAL NOTE : THE VARIABLE FINANCIAL INDICATOR IRR AND THE CONSTANT ECONOMIC INDICATOR NPV

The IRR (internal rate of return) and the NPV (net present value) are the two most common and important indicators in investment decisions. These two indicators, however, have intrinsic differences between one another. The IRR is a financial indicator and the NPV an economic indicator of a capital investment. The former gives the private investor's point of view and the latter the society's point of view. The value of ERR varies with the change of Financial arrangement of an investment. The NPV, however, does not but remains constant no matter how the financial arrangement changes. This paper uses an illustrative example to show their intrinsic differences and then describes a mathematical proof to substantiate the different natures of IRR and NPV.     

Consumers and Competition in Health Care: The Case of Denturism

Denturism is the making and fitting of dentures directly for the public by nondentists. It is an example of potential competitive entry in a health services market and, like other such examples, its economic benefits must be weighed against any threat to the public health and safety. This article examines evidence relating to the economic benefits to consumers of legalizing denturism. Conservative estimates are presented of the economic benefits to consumers that would accrue under alternative institutional arrangements. Under several such arrangements it was found that the value of benefits is of the same order of magnitude as total government expenditures on dental services.     

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.     

When Does Information Asymmetry Affect the Cost of Capital?

This paper examines when information asymmetry among investors affects the cost of capital in excess of standard risk factors. When equity markets are perfectly competitive, information asymmetry has no separate effect on the cost of capital. When markets are imperfect, information asymmetry can have a separate effect on firms’ cost of capital. Consistent with our prediction, we find that information asymmetry has a positive relation with firms’ cost of capital in excess of standard risk factors when markets are imperfect and no relation when markets approximate perfect competition. Overall, our results show that the degree of market competition is an important conditioning variable to consider when examining the relation between information asymmetry and cost of capital.     

Presidential Address: Discount Rates

Discount‐rate variation is the central organizing question of current asset‐pricing research. I survey facts, theories, and applications. Previously, we thought returns were unpredictable, with variation in price‐dividend ratios due to variation in expected cashflows. Now it seems all price‐dividend variation corresponds to discount‐rate variation. We also thought that the cross‐section of expected returns came from the CAPM. Now we have a zoo of new factors. I categorize discount‐rate theories based on central ingredients and data sources. Incorporating discount‐rate variation affects finance applications, including portfolio theory, accounting, cost of capital, capital structure, compensation, and macroeconomics.     

Advance Notice and Job Search: More on the Value of an Early Start

This paper investigates the effects of advance notice of impending job loss on the length of jobless spells of displaced workers. We evaluate the performance of a formal search model and offer a generalization of the model that provides an alternative but related approach to the most recent empirically based literature. Evidence of gains from early search are found for all broad gender-occupation groups except blue-collar males.