We make three comparisons relevant for the business cycle accounting approach. We show that in theory, representing the investment wedge as a tax on investment is equivalent to representing this wedge as a tax on capital income as long as the probability distributions over this wedge in the two representations are the same. In practice, convenience dictates that the underlying probability distributions over the investment wedge are different in the two representations. Even so, the quantitative results under the two representations are essentially identical. We also compare our methodology, the CKM methodology, to an alternative one used in Christiano and Davis (2006) and by us in early incarnations of the business cycle accounting approach. We argue that the CKM methodology rests on more secure theoretical foundations. Finally, we show that the results from the VAR-style decomposition of Christiano and Davis reinforce the results of the business cycle decomposition of CKM.
- E32 - Business Fluctuations; Cycles
- E65 - Studies of Particular Policy Episodes
- E13 - General Aggregative Models: Neoclassical
- E17 - General Aggregative Models: Forecasting and Simulation: Models and Applications
- E44 - Financial Markets and the Macroeconomy
- E47 - Money and Interest Rates: Forecasting and Simulation: Models and Applications
- Federal Reserve Bank of Minneapolis. Research Department
- Federal Reserve Bank of Minneapolis
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