Calibrating and Applying Random-Utility-Based Multiregional Input–Output Models for Real-World Applications

Chris Bachmann ()
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Chris Bachmann: University of Waterloo

Networks and Spatial Economics, 2019, vol. 19, issue 1, No 10, 219-242

Abstract: Abstract Random-utility-based multiregional input–output (RUBMRIO) models are used to study the impact of changes in transport networks or spatial economies on interregional or international trade patterns. These models rely on elastic prices algorithms to estimate trade flows. According to the literature, two different RUBMRIO elastic prices algorithms exist: an original algorithm that was the subject of theoretical investigation, and a modified algorithm that has been commonly used in practice. The original algorithm measures prices and acquisition costs in dollars, whereas the modified algorithm measures prices and acquisition costs in units of utility. By deriving the equivalence conditions of these algorithms, it is proven that the modified algorithm is only equivalent to the original algorithm under very restrictive conditions: first, initial sector prices must be the same in each region; second, cost parameters must be the same for all industries; and third, no other variables can be introduced into the original trade coefficient model specification. In a numerical example, the modified algorithm results in a mean absolute percentage error of 56% for trade flow values. Due to these restrictions, it is recommended that future studies adopt the approach of determining initial RUBMRIO prices endogenously before calibration, which are shown be solved directly from a system of linear equations, and applying the original RUBMRIO elastic prices algorithm (measuring prices in dollars).

Keywords: Spatial input–output models; Random-utility-based multiregional input–output models; Calibration; Application; Integrated land use-transportation models (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1007/s11067-019-9444-3

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