This Report on the Observance of Standards and Codes-Data Module (Data ROSC) updates assessments conducted in 2010 and 2015. The updated assessments are based on the May 2012 version of the IMF's Data Quality Assessment Framework (DQAF) and cover the national accounts, government finance, and...

Market option prices in last 20 years confirmed deviations from the Black and Scholes (BS) models assumptions, especially on the BS implied volatility. Implied binomialtrees (IBT) models capture the variations of the implied volatility known as \volatility smile". They provide a discrete...