Question: Build a bivariate stochastic volatility model for the monthly log returns of General Motors stock and the S&P 500 index for the sample period from
Build a bivariate stochastic volatility model for the monthly log returns of General Motors stock and the S\&P 500 index for the sample period from January 1950 to December 1999. Discuss the relationship between the two volatility processes and compute the time-varying beta for GM stock.
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