How environmental regulation affects China's rare earth export?

Area of Science:

• Environmental Economics
• International Trade
• Industrial Policy

Background:

• China's rare earth export dominance since the 1990s has led to significant environmental concerns.
• Growing emphasis on environmental protection in China necessitates understanding its impact on trade.
• Limited research exists on the specific effects of environmental regulation on rare earth export trade at the product level.

Purpose of the Study:

• To analyze the influence of environmental regulation on China's rare earth export trade.
• To investigate the differential impact of environmental regulation across various rare earth product categories.
• To explore the mediating role of technological innovation in this relationship.

Main Methods:

• Utilized product-level rare earth export data from China spanning 1995 to 2015.
• Introduced product heterogeneity based on rare earth production processes (raw materials, useful components, end-use applications).
• Employed the entropy weight method to quantify the intensity of environmental regulation.

Main Results:

• Environmental regulation was found to significantly promote, not hinder, China's rare earth exports.
• Rare earth useful component exports showed a positive response to environmental regulation, while raw materials and end-use applications were minimally affected.
• Technological innovation acts as a key mediator, with environmental regulation driving innovation and subsequently increasing rare earth exports.

Conclusions:

• Environmental regulations can positively influence rare earth export trade, particularly for intermediate products.
• The findings highlight the critical role of technological innovation in mitigating environmental costs and enhancing export competitiveness.
• Policy recommendations can be informed by this understanding to balance environmental protection with trade objectives in the rare earth sector.