A comparison of Ad valorem and per unit taxes in regulated monopolies

This paper compares the output and revenue effects in the rate-of-return regulated monopoly model. Both the ad valorem and the unit tax generally decrease the use of capital, and as such, reduce the output and raise the price. In addition, it is shown that Suits and Musgrave's conclusion of higher revenue of an ad valorem tax at a given output can apply to a regulated monopolist if the marginal product of labor under the ad valorem tax is greater than or equal to that under the unit tax. Similarly, their second conclusion, that for a given tax revenue an ad valorem tax has a larger output than a unit tax rate before the revenue-maximizing tax rate, can also apply to the regulated monopolist.     

Book Reviews

R.J. May and W.J. O'Malley (eds), Observing Change in Asia. Essays in Honour of J.A.C. Mackie, Bathurst: Crawford House Press, 1989, pp. 265. Paper: A$20.00.

Michael R. Dove (ed.), The Real and Imagined Role of Culture in Development: Case Studies from Indonesia, Honolulu: University of Hawaii Press, 1988. US$ 32.00.

Fukuo Ueno, Desa Cimahi: Analysis of a Village on Java during the Japanese Occupation (1943), Rotterdam: Comparative Asian Studies Programme (GASP), Erasmus University, 1988, pp. 291 + xi.

Sritua Arief and Adi Sasono, Modal Asing, Beban Hutang Luar Negeri dan Ekonomi Indonesia, Jakarta: LSP dan UI Press, 1987, pp. 69 + xix.

BRIEFLY NOTED: World Bank, World Debt Tables 1989–90, 2 Vols, Washington Dc, 1989.

Mohan Munasinghe, Energy Analysis and Policy, London: Butterworths, 1990, pp. 315 + xx; Electric Power Economics, London: Butterworths, 1990, pp. 323 + xviii.     

Trade unions vs. statistical discrimination: Theory and application to post-apartheid South Africa

A simple model of statistical discrimination is analyzed, which captures some stylized facts of the South African labor market. It shows that this type of discrimination disappears when the wage rates are determined by efficient bargaining between a representative firm and a union, with endogenous membership. This may explain why the wage gap between Black and White workers in post-apartheid South Africa is smaller among unionized workers than among non-unionized ones.     

佩皮尼昂:欧洲城市的未来

佩皮尼昂市以其城市规划，以其过去和未来在社会经济文化方面的巨大发展变化，正无可争辩地列入欧洲都市的网络之中。她的地位也从“大的小城市”变为“小的大城市”。     

Evolutionary and socio-cultural influences on feelings and attitudes towards nature: a cross-cultural study

Mounting environmental issues have prompted reconsideration of the human–nature relationship. Accordingly, attitudes to nature, as an important dimension of human–nature interactions, have become a research focus. How feelings and attitudes towards nature are influenced by evolutionary and social-cultural constructions, and whether there is variation between different cultural groups, demands more attention. Using a survey of visitors to two very different National Parks, the New Forest National Park, England and Jiuzhaigou Scenic Area, China, this paper shows that of nationality and living environment, differences between the two nationalities were significant in respect of both attitudes and feelings. Specifically, it demonstrates that the biophilia thesis, which purports that people have an innate and a genetically inherited need for affiliation with nature, is influenced by their socio-cultural environment, in particular their national culture, but also by their current living place. The study contributes to our understanding of sustainable tourism in natural areas.     

On Crop Biodiversity, Risk Exposure, and Food Security in the Highlands of Ethiopia

This paper investigates the effects of crop genetic diversity on farm productivity and production risk in the highlands of Ethiopia. Using a moment-based approach, the analysis uses a stochastic production function capturing mean, variance, and skewness effects. Welfare implications of diversity are evaluated using a certainty equivalent, measured as expected income minus a risk premium (reflecting the cost of risk). We find that the effect of diversity on skewness dominates its effect on variance, meaning that diversity reduces the cost of risk. The analysis also shows that the beneficial effects of diversity become of greater value in degraded land.