Alan: Government subsidies have been proposed in Cariana to encourage farmers in Rochelle, the country' s principal agricultural region, to implement certain new farming techniques  Unless these techniques are implemented, erosion of productive topsoil cannot be controlled  Unfortunately, farmers cannot afford to shoulder the entire cost of the new techniques, which are more expensive than those currently used  Ttherefore, without subsidies, agricultural output in Rochelle will inevitably decline  Betty: But erosion in Rochelle is caused by recurring floods, which will end next year once Cariana completes the hydroelectric dam it is building across the region' s major river
Ttherefore, Rochelle' s total agricultural output will stabilize at its present level even without subsidies
The current yearly output, if any, from Rochelle's land that will be permanently under water once the dam is completed will at least be matched by additional yearly output from Rochelle's remaining land.