Laffer curve is simplistic in that it assumes a single tax rate and a single labor supply. Actual systems of public finance are more complex, and there is serious doubt about the relevance of considering a single marginal tax rate. 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 to the same percentage (a kind of hysteresis). Furthermore, the Laffer curve does not take explicitly into account the nature of the tax avoidance taking place.
John Brooks (writer) II and the ill-fated introduction of the most famous failed automotive gambit in history, the Edsel. Brooks also wrote widely on other subjects as well, including the government-guaranteed loans to Chrysler Corporation, the public television show "Wall Street Week" and its creator Louis Rukeyser, an examination of supply-side economics, the banking behemoth Citibank, economist Arthur Laffer and his Laffer curve, the development of New Jersey's Meadowlands, New York City urban planner Robert Moses, and even the Southern grocery store chain Piggly Wiggly. Brooks's writing on finance won him three Gerald Loeb Awards, and moved Harvard economist John Kenneth Galbraith to