Both single-equation models [Houthakar and Magee (1969), Naqvi et al (1983), Bahmani-Oskooee (1986)] and simultaneous equation models [Khan (1974), Goldstein and Khan (1978), Arize (1986), Balassa et al (1989), Anwar (1985) Khan and Saqib (1993) and Afzal (2001)] have been used to study export behavior in developed and underdeveloped countries. Goldstein and Khan [(1978)] have investigated the price responsiveness of export demand and export supply of eight industrial countries for the period 1955- 70 using both equilibrium and disequilibrium models. The studies on the behavior of Pakistan’s exports [Naqvi et al (1983), Anwar (1985), Khan and Saqib (1993) and Afzal (2001)] have not investigated the disequilibrium aspect of exports’ response