Fiscal policy can be used to alter the level of demand for different products and also the pattern of demand within the economy.
Indirect taxes can be used to raise the price of de-merit goods and products with negative externalities designed to increase the opportunity cost of consumption and thereby reduce consumer demand towards a socially optimal level
Subsidies to consumers will lower the price of merit goods. They are designed to boost consumption and output of products with positive externalities – remember that a subsidy causes an increase in market supply and leads to a lower equilibrium price
Tax relief: The government may offer financial assistance such as tax credits for business investment in research and development. Or a reduction in corporation tax (a tax on company profits) designed to promote new capital investment and extra employment
Changes to taxation and welfare payments can be used to influence the overall distribution of income and wealth – for example higher direct tax rates on rich households or an increase in the value of welfare benefits for the poor to make the tax and benefit system more progressive