というNBER論文が上がっている(ungated版)。原題は「Markups and Markdowns」で、著者はChad Syverson(シカゴ大)。 以下はその要旨。 Interest in market power has recently surged among economists in many fields, well beyond its traditional home in industrial organization. This has focused empirical attention on markups, the ratios of price to m…