Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
Using annual US data for gross domestic product originating by sector between 1947 and 1997 it is shown that a negative long-run relationship between inflation and the markup is present across the sectors as well as in the aggregate data. A preliminary explanation based on industry structure is explored for the relative sizes of the impact of inflation on the markup in the long-run for the various sectors.