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41.
Sajal Lahiri 《Socio》1984,18(5):337-342
This paper develops two alternative methods for reconciling purchases and sales estimates of a regional input-output table. The present procedures are extentions of the well known Jensen-McGaurr (J-M) procedures. It is claimed that the proposed techniques would reduce to a great extent the subjective elements in the J-M procedure and thus lower the time costs to the researcher. The present methods have been applied to the data for the Central Queensland Economy and comparisons made between the results coming out of the present procedures and the J-M procedure. In particular, it has been found that the present procedures, though less subjective in nature, produce estimates that are as reliable as the J-M estimates. 相似文献
42.
Computerised Record Linkage methods help us combine multiple data sets from different sources when a single data set with all necessary information is unavailable or when data collection on additional variables is time consuming and extremely costly. Linkage errors are inevitable in the linked data set because of the unavailability of error‐free unique identifiers. A small amount of linkage errors can lead to substantial bias and increased variability in estimating parameters of a statistical model. In this paper, we propose a unified theory for statistical analysis with linked data. Our proposed method, unlike the ones available for secondary data analysis of linked data, exploits record linkage process data as an alternative to taking a costly sample to evaluate error rates from the record linkage procedure. A jackknife method is introduced to estimate bias, covariance matrix and mean squared error of our proposed estimators. Simulation results are presented to evaluate the performance of the proposed estimators that account for linkage errors. 相似文献
43.
We examine discrepancies between the Center for Research in Security Prices (CRSP) and Trade and Quote (TAQ) databases by examining the returns of momentum strategies using each database. Momentum portfolios constructed from CRSP prices earn significant profits whereas similar portfolios using TAQ prices show losses. Adjusting TAQ prices with the TAQ dividends file or with the cumulative distribution factor provided by CRSP does not eliminate all differences. There are significant discrepancies in the way CRSP and TAQ record newly listed and delisted stocks. We document the residual (after all filters) price differences between the two databases and provide filters to adjust TAQ data for long sample periods and large sample sizes. Our filtering procedures allow for the possibility of examining intraday patterns in momentum profits. 相似文献
44.
This paper discusses the short-run adjustment mechanism of the Egyptian economy to changes in the domestic price of oil. The effects of oil price increases have been analysed in the framework of a short-run macroeconomic model with an explicit treatment of energy. The results suggest that a reduction in petroleum use induced by a rise in the price of oil will impose difficult adjustment problems for the economy in the short run in terms of increase in inflation, fall in the share of wage income and sharp output losses. The analysis also indicates that energy demand management through appropriate petroleum pricing strategy cannot bring about desirable impacts on the economy unless efforts are made to reduce cost pressures originating from other energy sectors. 相似文献
45.
This paper extends the Spencer and Brander (1983) model of strategic exports and R&D by introducing exchange rate volatility and R&D activities that require internationally mobile skilled labor. We find that an increased volatility reduces both the levels of optimal export subsidy and R&D tax. We also find that the endogeneity of skilled wage increases the level of export subsidy and reduces the level of R&D tax if the country is an exporter of skilled labor. 相似文献
46.
The provision of official relative to private foreign aid varies considerably between donor countries. We explain the variations in terms of country size, household composition, income distribution, and the government's ability to commit to aid, and derive inter alia the results: (1) official aid crowds out private aid, (2) total aid and official aid collected from each household are lower in more populous countries, (3) total aid is lower if (i) the distribution of income favors the more altruistic households, and (ii) the government can credibly commit to a certain level of aid. Evidences suggest that the theoretical results can explain stylized facts. 相似文献
47.
One of the central problems in macroeconomics is the comparison of the effectiveness of various monetary and fiscal policy measures for regulating output and employment. Opinions on this issue are quite varied. This paper analyses this controversy in the framework of a non-Walrasian model with price rigidities. It studies a monetary economy where money is the sole medium of exchange in the model ‘money buys goods and goods buy money; but goods do not buy goods’. The works of Benassy, Dreze, Malinvaud and Younes are utilised for constructing a model of Keynesian unemployment equilibrium. 相似文献
48.
Sajal Lahiri 《European Economic Review》1983,22(2):219-226
This paper extends the standard input-output (10) model by introducing alternative technologies and capacity constraints. A necessary and sufficient condition for the existence of solutions and two alternative sufficient conditions for the uniqueness of a solution have been developed. 相似文献
49.
50.
In the context of stochastic regressors, the exact sampling distribution of the omitted variable estimator is derived. The result is then used for comparison with the non-stochastic case. 相似文献