When carbon policy meets sulfur policy: How environmental policy portfolios enhance green productivity in Chinese cities

A-Tier

Journal: Energy Economics

Year: 2026

Volume: 154

Issue: C

Authors (2)

Tan, Bin (not in RePEc) Zhang, Ning (Yonsei University)

Score contribution per author:

2.018 = (α=2.02 / 2 authors) × 2.0x A-tier

α: calibrated so average coauthorship-adjusted count equals average raw count