كليدواژه :
مزيت نسبي , نسبت هزينه به منفعت اجتماعي , مقياس و جمعي مزيت , سود خالص اجتماعي , هزينه منابع داخلي , شاخص هاي كارايي
چكيده لاتين :
Khuzestan province is one of the agricultural poles in Iran. It could be a main center of
production and export of agricultural crops, if a suitable planned investment used in the
agricultural sector. A delicate attention to the comparative advantage of crops is an
important aspect of economic planning. In this research comparative advantage of the
main crops such as wheat and barley (irrigated and rainfed), rice, com, sugarbeet,
watermelon, tomato, onion, potato and cucumber were studied in 1998-1999. Two
groups of indices were used. The first one includes Net Social Profitability (NSP),
Domestic Resource Cost (DRC) and Social Cost-Benefit (SCB) ratio. Absolute and
relative purchasing power parity (ppp) price used to determine the mentioned indices.
The second one includes Efficiency Advantage Index (EFI), Scale Advantage Index
(SCI) and Aggregate Advantage Index (AAI). Based on the first group of indices and
absolute ppp wheat and barley (irrigated), com, rice, sugarbeet, watermelon, cucumber
and tomato had comparative advantage in production and trade. The others had no
comparative advantage. In addition to the above crops, potato had a comparative
advantage, using relative ppp. Based on the EAI index sugarbeet, watermelon, cucumber,
potato, onion, tomato and rainfed wheat had comparative advantage in yield. The others
had no comparative advantage in yield. SAl was more than one in wheat (irrigated and
rainfed). It showed the extent of concentration of wheat in the region relative to that at
national average was more. The other crops showed vice versa. AAI was also more than
one in the wheat only (irrigated and rainfed). It means that the wheat in the region had a
comparative advantage over the national average and vice versa for the others.
