Asymptotic efficiencies of spacings tests for goodness of fit

Tests based on higher-order orm-step spacings have been considered in the literature for the goodness of fit problem. This paper studies the asymptotic distribution theory for such tests based on non-overlappingm-step spacings whenm, the length of the step, also increases with the sample sizen, to inifinity. By utilizing the asymptotic distributions under a sequence of close alternatives and studying their relative efficiencies, we try to answer a central question about the choice ofm in relation ton. Efficiency comparisons are made with tests based on overlappingm-step spacings, as well as corresponding chi-square tests.     

Inflation and stabilization in Argentina

This paper reports the results of simulation experiments which were conducted by using a CGE model of Argentina. The results suggest that: the economy could not have been stabilized by using the preannounced devaluation rate during 1978-81; economic performance could have improved in 1985-89 under a modified Austral plan but, with the altered structure, there would still be a severe currency appreciation; and the Convertibility Law based programme is very successful in arresting inflation and eliminating a budget deficit, though it is not free from side effects such as money supply shortages and high interest rates.     

INTER-OCCUPATION DIFFERENCES IN THE PATTERN OF MONETIZED AND NON-MONETIZED CONSUMER EXPENDITURE IN RURAL INDIA*

This study attempts to examine the inter-occupational differences in the patterns of cash and in-kind expenditure in rural India on the basis of a special tabulation of The National Sample Survey (NSS), 18th round (February 1963-January 1964) consumer expenditure data. The occupational groups considered here are (i) cultivators, (ii) agricultural labourers, (iii) other agriculture, and (iv) non-agricultural occupations. The analysis is carried out primarily in terms of curves relating item-specific cash/kind expenditure to total cash/total kind expenditure for fifteen selected item-groups of expenditure. For each item-occupation combination, four two-parameter forms of Engel curve together with the log-log-inverse form are estimated and the comparisons across occupation groups are made separately on the basis of each of the two-parameter curve forms which were found to give the best fit for at least one occupation group as well as the log-log-inverse form, using analysis of covariance technique. The results indicate that so far as the cash components of item expenditures are concerned, the pattern of expenditure is considerably influenced by occupational factors. It is observed that cultivators have a cash expenditure pattern different from those of agrictural labourers and of households with non-agricultural activities. The comparison of the kind expenditure patterns does not, however, reflect any clear picture primarily because in most cases the itemwise kind expenditure functions could not be estimated satisfactorily. This analysis also suggests that the specification of itemwise cash and kind expenditure functions employed here may not be the most satisfactory ones in an economy with a high degree of non-monetization and therefore alternative specifications need be examined.     

Productivity of Agricultural Labour and Land: An International Comparison

This paper examines partial agricultural land and labour productivity in 1975 and 1980, for different world regions. The results suggest that land and labour productivity are higher in developed countries relative to developing countries. However, agricultural labour productivity differences are more marked than those for agricultural land productivity. The productivity values for 1975 and 1980 indicate a widening of productivity differences, more so in the case of agricultural labour than land. The paper also proposes an alternative approach to estimating agricultural land and labour productivity. This approach, which regresses agricultural labour productivity on a given level of agricultural land productivity, suggests a narrowing of agricultural land productivity differences, relative to the initial approach, across Africa, Asia and Europe during the 1975-1980 period. A brief discussion of the agricultural development policy implications of the results concludes the paper.     

A note on the unbiasedness of Swamy's estimator for the random coefficient regression model

In this note the estimator proposed by Swamy (1970) for the random coefficient regression model is proved to be unbiased under fairly general conditions. In addition, the conditions under which the mean of the estimator exists are derived.     

A new approach to public investment

Public investment decisions are usually based on multiple objective criteria. In this paper, Optimal Investment Decision Problem is formulated as a Multicriterion Optimal Control Problem. Apart from accounting for the multiple objectives, the dynamics of the economic system can also be incorporated in this formulation. Some techniques of solving these problems are discussed and trade-off schemes for the various objectives are suggested through the associated shadow prices.     

浅论电力工程造价的管理

电力工程造价是电力企业投资成本中的重要组成部分,也是构成电价的重要性因素。控制工程造价不仅仅是防止投资突破限额,更重要的是要促进建设、施工和设计单位加强管理,使人力、物力和财力有限的资源得到充分的利用,取得最佳的经济效益和社会效益。     

Performance of Exporters in an Emerging Economy

This article develops a contingency framework to investigate demand and supply factors to model small and medium exporters in Dubai a fast emerging economy in the Middle East. MNL methodology is used to identify the factors that discriminate three types of exporters: increasing growth; erratic growth, and decreasing growth. Cross sectional data of 179 exporters for the period from 2000–2003 were used for the analysis. Global demand factors followed by limited local market factors and product attributes are found to statistically discriminate the three types of exporters. The study findings have implications on strategies, promotion and marketing actions, capital constraints of exporters besides policy initiative to be taken by the government and regulatory authority.     

IS YOUR COMPANY READY TO SUCCEED?

Srikumar Rao has asked thousands of students about the ideal company of the future, the kind of place where they would want to spend their lives. Thinking about what he has heard from them, he believes tomorrow's successful enterprise will be a different kind of company indeed.