A Comparative Analysis of Carbon Dioxide Emissions in Coated Paper Production Key Differences between China and the U.S.

Therefore, this paper contributes to the existing literature by showing that the in- teraction of effort choices could work in both directions, even within the same firm at the same time. In particular, we show that a “positive interaction” should exist between complementary workers, while workers who are substitutes may free ride off the effort of each other, and thus generate a “negative interaction” in the effort choices of co-workers.