{"id":857,"date":"2016-08-09T09:16:59","date_gmt":"2016-08-09T07:16:59","guid":{"rendered":"http:\/\/www.supagro.fr\/wordpress\/modeleco\/?page_id=857"},"modified":"2024-07-19T09:27:34","modified_gmt":"2024-07-19T07:27:34","slug":"evaluez-vous-1-etape-1","status":"publish","type":"page","link":"https:\/\/www.supagro.fr\/wordpress\/modelecoen\/auto-formation\/sequence1\/evaluez-vous-1\/evaluez-vous-1-etape-1\/","title":{"rendered":"Unit 1.4. Family farm model \u2013 step 1"},"content":{"rendered":"Run GAMS and model the following problem. Then answer the questions (click on \u201cSubmit\u201d) :<\/strong>\n\n\u00a0<\/em>\u00ab<\/em>\u00a0A farmer owns 5 ha of land. His family can provide the equivalent of 5 people per year in terms of working time. The number of working days per year and per person is estimated at 100. This farmer can choose between 4 agricultural activities whose costs, yields and prices are shown in the table below. The currency is the rupee.\n\n\n\n\n\n\n
ACTIVITIES<\/td>\nWheat<\/td>\nRice<\/td>\nSugar cane<\/td>\nLivestock<\/td>\n<\/tr>\n
YIELD\n(Tons\/ha or\nRupees\/ha for livestock)<\/td>\n\u00a09<\/td>\n6<\/td>\n18<\/td>\n17000<\/td>\n<\/tr>\n
COSTS(Rupees\/ha)<\/td>\n3120<\/td>\n5480<\/td>\n11360<\/td>\n5000<\/td>\n<\/tr>\n
PRICE(Rupees\/ton)<\/td>\n990<\/td>\n3276<\/td>\n1686<\/td>\n1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nFor livestock, the value shown in the yield row directly measures the gross product per hectare. A value of 1 was therefore provided in the price line.\n\nThe table below compiles the resource needs for each activity.\n\n\n\n\n
ACTIVITIES<\/td>\nWheat<\/td>\nRice<\/td>\nSugar cane<\/td>\nLivestock<\/td>\n<\/tr>\n
Labour(days\/year\/ha)<\/td>\n40.5<\/td>\n96<\/td>\n282<\/td>\n159<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nThe objective of the farmer is to maximize the global gross margin.\u00bb\n\nIf you need help and\/or to make sure you use the same names for the data :\n\n\"\"<\/a>\n\nOne you have modelled this problem, answer the questions.<\/strong>\n\n