Environmental Policy Instruments and Eco-innovation
Meng Liu

Abstract
Global warming continues to play a significant role in affecting environment including the economy, the nature, agriculture, energy, land and water resources, transportation, and human health. Countries have adopted various types of environmental policies to prevent climate problems from continuing to deteriorate by promoting eco-technical innovation. Many studies have analyzed and tested the impact of different policies on ecological innovation. By reviewing the existing literature, this paper summarized the incentive effects of past research on the ecological innovation of command-and-control, market-based and voluntary environmental policies, and pointing out the current research trends and the direction that may be needed in the future.

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