Irving Fisher,
The Purchasing Power of Money…
“ As prices rise, profits of business men, measured in money, will rise also, even if the costs of business were to rise in the same proportion. Thus, if a man who sold $10,000 of goods at a cost of $6000, thus clearing $4000, could get double prices at double cost, his profit would be double also, being $20,000—$12,000, which is $8000. Of course such a rise of prices would be purely nominal, as it would merely keep pace with the rise in price level. The business man would gain no advantage, for his larger money profits would buy no more than his former smaller money profits bought before. ”
