Input-output and the firm: Some comments
Morrison W. I. (1973) Input-output and the firm: Some comments, Reg. Studies 7, 253–256. This paper continues the debate started by Tiebout and continued recently in Regional Studies by Hewings and Greytak, who both suggested that a method originally proposed by Tiebout could be used to integrate an individual firm into a regional input-output table. Tiebout's approach is considered in some detail, and a number of critical comments are made. It is shown that Tiebout's method was not intended for use in the way Hewings intimated, and, consequently, many of Greytak's criticisms become less important. Finally, it is suggested that an iterative approach to the Leontief inverse is often most suitable in impact studies.
The firm in regional input-output analysis
Greytak D. (1972) The firm in regional input-output analysis, Reg. Studies 6, 327–329. This paper evaluates the direct input and multiplier coefficients calculated for a firm integrated into a regional input-output table in the manner originally suggested by the late Professor Tiebout. Divergence between the coefficients calculated by the suggested technique and those calculated from the direct requirements table can be attributed to the conventions applied in the definition of industries and to the distinction between sales on current and capital account. Moreover, use of the technique as a means of assessing the impact of a new firm locating in a region is considered and found to be in conflict with the assumption underlying the calculation of inter-industry multiplier coefficients.
Did the metamorphosis from Export Processing Zones to Special Economic Zones improve the efficiency of trade enclaves in India?
In this paper, the efficiency of seven conventional Special Economic Zones in India is analyzed, by adopting a stochastic production frontier technique, for the period between 1986–1987 and 2007–2008.Results indicate that although the efficiency scores of these enclaves have improved over the years, specifically with the introduction of the SEZ policy (2000–2001), it is far below the threshold level as identified in the literature. Besides, one can also observe a discrepancy emerging between better export earning zones and efficient zones. On the determinants side, policy intervention and large geographical area, accompanied by clustering of units, are found to have impacted the efficiency scores of these enclaves positively.