The IMF Working Papers series is designed to make IMF staff research available to a wide audience. Almost 300 Working Papers are released each year, covering a wide range of theoretical and analytical topics, including balance of payments, monetary and fiscal issues, global liquidity, and national and international economic developments.
Ding Ding, John Nelmes, Roshan Perera, and Volodymyr Tulin
INTERNATIONAL MONETARY FUND
In this paper we present various techniques to estimate Sri Lanka's potential output and output gap, including statistical and model-based approaches. Compared to conventional statistical filters that rely exclusively on information in a single series, the model-based approaches allow potential output estimates to incorporate information contained in observable data series including inflation, actual output, unemployment and capacity utilization. The estimation results suggest that Sri Lanka's potential output has risen slightly in the last few years.