Koerts, J.

store model value demand equation supply effect capacity result estimate price labour regime table observation parameter thurik product sample store supply capacity level disequilibrium column service information study floorspace assortment productivity labour productivity estimation marketing mix effects marketing share occupancy costs function volume business distribution regime information variable advertising likelihood store demand parameter estimates respect situation difference / measurement research market analysis space number demand equation section advertising expenses supermarket specification kooiman estimation results disequilibrium model retailing example paper sample separation information measurement demand observations variable-intercept model business types home-made price level koert approach roy thurik supply capacity equation supply capacity group ratio van dalen