Interstate protectionism: the case of solar renewable energy credits
研究了美国一些州关闭太阳能可再生能源信用额度市场、禁止外州太阳能设施参与的保护主义政策，发现该政策提高了本州信用额度价格和太阳能安装量，并降低了电价，揭示了保护本州市场的经济动机。
Abstract Solar Renewable Energy Credits (SRECs) are financial instruments created by state policies to offer incentives for generating solar energy. In an effort to support in‐state solar energy sectors and boost local employment opportunities, some states have closed off their SREC markets to out‐of‐state solar facilities. We examine the merits of such protectionist policy from the protectionist state's perspective. We find that SREC market closure leads to higher in‐state SREC prices and greater solar installation, and is associated with lower electricity prices. The study illustrates the economic incentives for protecting in‐state SREC markets from out‐of‐state solar energy producers.