"Do marijuana users cut back on consumption when the price rises? To what degree is marijuana consumption related to drinking and tobacco usage? What would happen if marijuana were legalised and taxed in the same way as alcohol and tobacco? Is marijuana priced in a similar way to other goods?...

"Currency values, prices, consumption and incomes are at the heart of the economic performance of all countries. In order to make a meaningful comparison between one economy and another, economists routinely make use of purchasing power parity (PPP) exchange rates, but whilst PPP rates are...