How many instruments should be used to address a particular environmental problem? That is the question this article addresses. According to the "Tinbergen rule," one instrument per target is needed. The existence of any non-environmental market failures affecting the environmental problem at...

This paper reviews the use of tax preferences to achieve environmental policy objectives. Tax preferences involve using the tax system to adjust relative prices with a view to influencing producer or consumer behaviour in favour of goods or services that are considered to be environmentally...

Well designed emission trading systems are environmentally effective and economically efficient instruments to address emissions of CO2 and other greenhouse gases. This paper discusses interactions that can occur when a cap-and-trade based emission trading system is combined with overlapping...