On the comparison of dollar-unit and stratified mean-per-unit estimators

Abstract. The paper discusses the findings reported by Smieliauskas (1986) and expands on them. It focuses on the dominance criterion for cost efficiency and on the usefulness of power curves for stratified mean-per-unit estimators. The analyses lead to the conclusions that: (1) while an audit plan which dominates another is associated with lower cost, a plan with lower cost does not necessarily dominate: (2) the distribution function of the t statistic becomes normal for sufficiently large samples, but the approach to normality is not necessarily uniform as sample size increases; (3) large sample size is required for nominal confidence levels to be a good approximation to the true confidence level, and the true confidence level can move temporarily farther from the nominal level as the sample size increases; and (4) the lack of reliability of ex ante power curves for the stratified mean-per-unit estimator makes it difficult to decide which power curve dominates. Résumé. Cet article discute des résultats publiés par Smielauskas (1986) et les extrapole. Il met l'accent sur le critère de dominance pour l'efficacité des coûts et sur l'efficacité des courbes de puissance pour les estimateurs de moyenne-par-unité stratifiée. Les analyses portent à conclure que: (1) même si un programme de vérification dominant par rapport à un autre est associé à un coût inférieur, un programme à coût inférieur n'est pas nécessairement dominant; (2) la fonction de distribution de la statistique t tend vers la normale pour des échantillons suffisamment grands, mais ce rapprochement vers la normalité n'est pas nécessairement uniforme à mesure que la taille de l‘échantillon devient plus grande; (3) un échantillon de grande taille est requis afin que les seuils de confiance “nominaux” constituent une bonne approximation du seuil de confiance “réel”, et le seuil de confiance “réel” peut s’éloigner temporairement du seuil de confiance “nominal” à mesure que s'accroît la taille de l‘échantillon; et (4) l'absence de fiabilité des courbes de puissance ex ante pour l'estimateur de moyenne-par-unité stratifiée rend ardue la sélection de la courbe de puissance dominante.     

Immigrant Generation and Income in Australia*

Microdata for adult men from the 1981 Australian Census are used to study the determinants of income by immigrant generation. The overseas born, 30 per cent of adult males, have 5 per cent lower incomes than the native born, and ceteris paribus, 7 per cent lower incomes. Schooling and pre-immigration labour market experience have smaller effects for the overseas born. Among the Australian born, those with overseas-born parents have 4 per cent higher incomes overall, but, ceteris paribus, there is no difference. The means and partial effects of the explanatory variables among the native born are not related to the parents' nativity.     

TRADE BARRIERS IN THE PACIFIC FOREST SECTOR: WHO WINS AND WHO LOSES

This study uses a global model of the forest sector to examine changes in log production, consumption, prices, and trade and discusses the impacts of changes on economic wealth transfers for log export ban and log export tax scenarios. The results indicate that trade barriers are inefficient in allocating logs to domestic processors when a supply shortage exists. The trade barrier produces economic losses that exceed the benefits to the processors. A log export ban reduces log prices in the Pacc North-west by 8.5% and reduces timber harvests by 6.7%. The logs diverted to domestic mills save 1,208 more jobs than log export job losses but at an average annual cost of £230,463 per job saved. Economic transfers benefit lumber producers in the region under the ban. However, the benefits amount to 61% of regional timber producer losses including losses in the log export price premium, 39% of the loss to Asian processors, and 55% of the global consumer losses. Globally, lumber consumers lose £733 million. A log export tax scenario produces smaller impacts on prices and harvests since it does not eliminate total log exports. The tax scenario saves no jobs, and the average economic gain per job lost is £24,251 or about two-thirds of the current average salary in the forest products sector in the region. A log tax has the ability to retain £78 million in tax revenues.     

JOINT VENTURE BUY‐OUTS UNDER UNCERTAINTY*

This paper provides a theory of joint venture buy‐outs in the presence of demand uncertainty. In an infinite horizon framework with demand uncertainty, we consider a foreign firm's decision on whether to form a joint venture or to open a fully owned subsidiary. Without the possibility of future share adjustment, the foreign firm enters the market through a joint venture if the host‐country firm helps to reduce the uncertainty significantly. Consequently, the firm enters at an earlier point in time compared to the situation in which opening a fully owned subsidiary is the only option to the firm. The possibility of future share adjustment in the joint venture further increases the incentive to speed up foreign investment. Although the possibility of share adjustment results in a joint venture buy‐out and can reduce the future profits of the host‐country firm, it may increase host‐country welfare by attracting foreign investment at an earlier point in time. We show the implications of learning in the joint venture.     

Prospects: A Missing Piece of Current Selling Price Reporting

This article seeks to provide insights about a conceptual objection to current selling price reporting: that, in its determination of asset amounts, such reporting ignores the reporting entity's prospects (potential, promise, outlook) for achievement of possession of or of access to consumer general purchasing power beyond its achievement to date of such possession or access. The article argues that financial reports should provide (a) information that is helpful to the users to evaluate the prospects of the reporting entity, including financial statement information based on current selling price reporting, (b) a section of the income statement presenting amounts spent during the reporting period to enhance the reporting entity's prospects, and (c) various kinds of supplementary information to aid the evaluations, such as the kinds discussed in this article.     

Pricing the School Lunch—A Consumer Problem

To what extent do rising prices for school lunches cause students to cease their purchases of the hot Type A lunch? How many who cease buying become eligible for free lunches? Will a high drop out rate for students who buy, accompanied by a moderate increase in the number receiving free lunches, lower Federal lunch costs? These and related questions, and implications are treated relying upon data from a study in Pittsburgh as a basis for discussion.