Economies of Scale and Utilization: An Analysis of the Multi-Plant Generation Costs of the Electricity Commission of New South Wales, 1970/71–1984/85*

We examine the average costs of electricity generated in NSW at the site level employing a new simultaneous-equations model approach Further, we argue that costs depend principally on unit size and capacity utilization We reinterpret capacity utilization as a compositional variable which is a continuous proxy for the (inverse of) the intensity of demand for electricity, thus partially addressing the multi-product nature of electricity. Low capacity utilization corresponds to intense demands and hence peaking output We find that costs per kWh, as conventionally measured, are highly sensitive to the degree of capacity utilization but less so to unit size (scale). The results emphasize the need for tine-related pricing     

Renaissance attachment to things: material culture in last wills and testaments1

Over the past decade ‘material culture’ has become a sub‐discipline of Italian Renaissance studies. This literature, however, has focused on the rich and their objects preserved in museums or reflected in paintings. In addition, the period 1300 to 1600 has been treated without attention to changes in the relationship between people and possessions. The article turns to last wills and testaments, which survive in great numbers and sink deep roots through late medieval and Renaissance cities and their hinterlands. They reveal aspirations and anxieties about things from post‐mortem repairs to farm houses to pillows of monk's wool. These aspirations changed fundamentally after the Black Death. Earlier, during the ‘commercial revolution’, ordinary merchants, artisans, and peasants on their deathbeds practised what the mendicants preached: stripping themselves of their possessions, they converted their estates to coin to be scattered among pious and non‐pious beneficiaries. After the Black Death, testators began to reverse tack, devising ever more complex legal strategies to govern the future flow of their goods. This work of the dead had larger economic consequences. By encouraging the liquidation of estates, the earlier mendicant ideology quickened the velocity of exchange, while the early Renaissance attachment to things did the opposite.     

The Interaction between Internal Control Assessment and Substantive Testing in Audits for Fraud*

We examine the interaction between internal control assessments and substantive testing in a model of fraud detection. The purpose of our study is to examine a two‐stage model of the auditor‐manager interaction in which the auditor assesses the “likelihood” or possibility of fraud in the first stage and conducts substantive tests in the second stage. We examine the allocation of audit resources across these two distinct facets of the audit. We find that, regardless of the auditor's allocation, the probability of undetected fraud remains the same, but the allocation of some audit resources to internal control assessment may provide cost savings for the auditor.     

Real Rates of Return in Electricity Supply: New South Wales,Tasmania and Victoria*

This paper uses a newly developed economic return model to estimate the real (inflation adjusted) costs of supply, and rates of return, for the electricity systems in three States over very long time periods. It is shown that because of a combination of public ownership and the use of historical cost accounts, the real return on capital tends to fall with the onset of rapid inflation such as occurred in the mid 1970s In NSW in particular the rapid growth in demand for electricity in the 1970s due to falling real electricity prices and considerable increases in other energy prices has given rise to a major investment program and rapidly developing excess capacity. Higher real electricity prices in the 1980s, combined with the economic slump of 1982, resulted in low or negative growth rates in demand Much of the boom I bust mentality evident in all three States may have been avoided or ameliorated had the electrical supply authorities been required to earn even a very modest real rate of return of (say) 4 or more per cent p.a. which is considerably below the (pre-tax) return earned in the corporate sector.     

The Dividend Disconnect

Many individual investors, mutual funds, and institutions trade as if dividends and capital gains are disconnected attributes, not fully appreciating that dividends result in price decreases. Behavioral trading patterns (e.g., the disposition effect) are driven by price changes instead of total returns. Investors rarely reinvest dividends, and trade as if dividends are a separate, stable income stream. Analysts fail to account for the effect of dividends on price, leading to optimistic price forecasts for dividend‐paying stocks. Demand for dividends is systematically higher in periods of low interest rates and poor market performance, leading to lower returns for dividend‐paying stocks.