Abstract
The study examines the relation that spot exchange rate maintains with contemporaneous and one – month lagged forward rates in the framework of covered interest parity arbitrage in Indian foreign exchange (rupee/dollar) market from 3 rd January, 2011 to 2 nd November, 2015. ARIMA (4, 1, 0) stochastic structure of monthly spot rate (S t ) has been used to generate one – period ahead forecast (S e t+1 ) series. These forecasts are MMSE forecasts and ‘Rational’ by nature. The study shows that one – month lagged forward rate maintains an independent long – run stable relation with spot rate while there exists no co-integrating relation between spot rate and contemporaneous forward rate. One – period lagged forward rate is an optimal forecast of the next period spot rate in the sense that it will be proved wrong only to the extent ofa white noise error term. Risk premium is absent and CIRAP holds in the market such that lagged forward exchange rate on average equals the spot rate in the long – run. There exists no scope for reaping arbitrage profit arising out of the difference between forward rate and corresponding spot rate. This testifies for the ‘efficiency’ of Indian foreign exchange (rupee/dollar) market.
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More From: Artha Vijnana: Journal of The Gokhale Institute of Politics and Economics
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