Green complexity, economic fitness, and environmental degradation: evidence from US state-level data.

Green production is one of the major debates as environmental degradation poses threats globally. The paper attempts to explore the relationship between green production and environmental quality by using Economic Fitness approach. We develop a Green Complexity Index (GCI) dataset consisting of 290 traded green-labeled products and Economic Fitness Index (EFI) for the US states between 2002 and 2018.