which of his works were selected in persian?
UNANSWERABLE
where is birbhum district located? In the Indian state of West Bengal. how is the climate here? Western side is dry and extreme but eastern side is milder. which river flows through it? Ajay, Mayurakshi (Mor), Kopai etc what culture is followed here? he bauls of Birbhum, Kabiyals, Kirtaniyas, Poush etc can you name any person from here? Amartya Sen, Rabindranath Tagore, Jayadeva etc who was the first person? He  is an Indian economist. which research work is he related to? Choice of Techniques
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Amartya Sen [SEP] Research work
Sen's work on 'Choice of Techniques' complemented that of Maurice Dobb. In a developing country, the Dobb-Sen strategy relied on maximising investible surpluses, maintaining constant real wages and using the entire increase in labour productivity, due to technological change, to raise the rate of accumulation. In other words, workers were expected to demand no improvement in their standard of living despite having become more productive. Sen's papers in the late 1960s and early 1970s helped develop the theory of social choice, which first came to prominence in the work by the American economist Kenneth Arrow. Arrow, while working at the RAND Corporation, had most famously shown that when voters have three or more distinct alternatives (options), any ranked order voting system will in at least some situations inevitably conflict with what many assume to be basic democratic norms.