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Decline and recovery of Jordanian vegetable exports

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  • RONALD W. WARD

Abstract

Summary An econometric approach to estimate the impact of a disruptive event on the development of economic variables has been applied to an analysis of Jordanian vegetable exports after the Six Days War of 1967. The approach is based on dummy trend variables to represent the impact of decline and recovery. The demand equations for three vegetables have been estimated with a maximum likelihood procedure in conjunction with seemingly unrelated regressions. The latter has been used to take account of the common impact of random events on the exports of the various variables and proved to improve considerably the statistical reliability of the estimated parameters. A number of alternative linear and nonlinear specifications of the equations and of alternative time lengths of the decline and recovery periods have been considered and evaluated.

Suggested Citation

  • Ronald W. Ward, 1979. "Decline and recovery of Jordanian vegetable exports," European Review of Agricultural Economics, Oxford University Press and the European Agricultural and Applied Economics Publications Foundation, vol. 6(4), pages 453-465.
    • Handle: RePEc:oup:erevae:v:6:y:1979:i:4:p:453-465.
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    File URL: http://hdl.handle.net/10.1093/erae/6.4.453
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