PT - JOURNAL ARTICLE AU - T. Daniel Coggin AU - Bala G Arshanapalli TI - Speed of Adjustment in U.S. Financial Markets AID - 10.3905/jpm.2006.611804 DP - 2006 Jan 31 TA - The Journal of Portfolio Management PG - 62--69 VI - 32 IP - 2 4099 - https://pm-research.com/content/32/2/62.short 4100 - https://pm-research.com/content/32/2/62.full AB - This study uses U.S. financial market data from the post-World War II era to examine whether the statistical evidence supports a flexible-weight asset allocation in U.S. financial markets. A variety of econometric tests are developed to estimate the speed of adjustment of economic time series data subject to unit roots and structural breaks. The findings suggest that successful flexible-weight asset allocation is likely to be difficult. Of all the relationships tested, only the long-term government bonds versus S&P 500 relationship is cointegrated with a significant speed of adjustment parameter. This suggests a predictable long-run equilibrium relationship.TOPICS: Portfolio construction, factors, risk premia, portfolio theory