Teoria monetária da Escola de Salamanca - válida até hoje

"“Just as an abundance of goods causes prices to fall (the quantity of money and number of merchants being equal), so does an abundance of money cause them to rise (the quantity of goods and number of merchants being equal). The reason is that the money by itself becomes less valuable for the purpose of buying and comparing goods. Thus we see that in Spain the purchasing-power of money is far lower, on account of its abundance, than it was eighty years ago. A thing that could be bought for two ducats at that time is nowadays worth five, six, or even more. Wages have risen in the same proportion, and so have dowries, the price of estates, the income from benefices, and other things.”
~ Luís de Molina (1535-1601)