环境税可能会在带来大量政府收入的情况下催生更好的空气和水质量；拥堵税将改善城市的生活质量；财产和资本利得税能刺激更多向生产性活动增加投资，促进经济增长。
Environmental taxes could lead to better air and water quality, even as they raise substantial revenues; congestion taxes would improve quality of life in cities; property and capital-gains taxes would encourage higher investment in productive activities, promoting growth.