Using monthly stock and bond return data in the past 150 years (1855-2001) for both the US and the UK, this study documents time-varying stock-bond correlation over macroeconomic conditions (the business cycle, the inflation environment and monetary policy stance). There are different patterns...

Traditional autocorrelation and variance ratio tests are based on serial uncorrelatedness rather than martingale difference. As such, they do not capture potential nonlinearity-in-mean, which could lead to misleading inferences in favor of the martingale hypothesis. This paper employs various...