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The Environment and Directed Technical Change.

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Sustainable growth is achievable with temporary green innovation policies, balancing carbon taxes and research subsidies. Early intervention is key to avoid prolonged slow growth and ensure a smoother transition to clean technology.

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Area of Science:

  • Environmental Economics
  • Economic Growth Theory
  • Technological Innovation

Background:

  • Economic models often overlook environmental constraints on growth.
  • Technical change, crucial for growth, can be directed towards environmental sustainability.
  • Balancing economic output with environmental protection is a key challenge.

Purpose of the Study:

  • To model endogenous and directed technical change within environmental constraints.
  • To analyze the effectiveness of policy interventions for sustainable growth.
  • To investigate the role of input substitutability and exhaustible resources in green innovation.

Main Methods:

  • Development of a growth model incorporating environmental constraints.
  • Analysis of endogenous and directed technical change.
  • Simulation of policy interventions like taxes, subsidies, and resource management.

Main Results:

  • Sustainable growth is possible if clean and dirty inputs are substitutable, using temporary policy interventions.
  • Optimal policy combines carbon taxes with research subsidies to guide innovation efficiently.
  • Delayed policy implementation leads to longer, slower growth transitions.
  • Exhaustible resources in "dirty" input production can incentivize a shift to clean innovation.

Conclusions:

  • Policy interventions are crucial for achieving sustainable economic growth.
  • A balanced policy mix is more effective than relying solely on high carbon taxes.
  • Timely policy action minimizes economic disruption during the transition to cleaner technologies.