In recent years, inequality has risen in the region alongside rapid economic growth. The widening income gap strengthens the case for a government response, and fiscal policy is one of the most suitable policy instruments to promote a more equitable society that provides opportunities for all....

Production often causes pollution as a by-product. Once pollution problems become too severe, regulation is introduced by political authorities which forces the economy to make a transition to cleaner production processes. We model this transition as a change in "general purpose technology"...