sparcboy Wrote:
Nov 28, 2012 8:28 AM
There is serious doubt about the relevance of considering a single marginal tax rate.[2] In addition, revenue may well be a multivalued function of tax rate - for instance, an increase in tax rate to a certain percentage may not result in the same revenue as a decrease in tax rate, even if the final tax rate in both situations is the same (a kind of hysteresis)."