How to Calculate Purchasing Power. Purchasing power is a reflection of the value of money-not merely its stated value but its value as represented in how much that money can buy.

For example, $10,000 is set aside for 20 years, earning a hypothetical 8 percent rate of return annually. In one investment, taxes are deferred until the money is withdrawn. In the other investment, ...

Computations of power of rerandomization tests by exact methods are known to be computationally exorbitant. We introduce a much cheaper naive method of evaluating power and show--both by simulation ...