E’ una fissazione stupida dei nostri tempi, Leibniz lo sa. Ma non può fare a meno di linkare l’ennesimo articolo dell’Economist sugli hamburger di McDonald’s come indice della svalutazione delle divise nel mondo. Negli Stati Uniti un Big Mac sta sui $ 2.90, alle Filippine $ 1.23, in Svizzera $ 4.90.

In other words, the Philippine peso is the world’s most undervalued currency, the Swiss franc its most overvalued. The second column calculates Big Mac PPPs by dividing the local currency price by the American price. For instance, in Japan a Big Mac costs ¥262. Dividing this by the American price of $2.90 produces a dollar PPP against the yen of ¥90, compared with its current rate of ¥113, suggesting that the yen is 20% undervalued. In contrast, the euro (based on a weighted average of Big Mac prices in the euro area) is 13% overvalued.

The Economist