Why was F.A. Hayek against fiscal policy?

What happens when a government imposes a quota in a market? Which trade barrier discourages trade by placing a tax on foreign goods? What is need in order capitalism to work? What are the disadvantages of APEC? Tariff that raised tax on imports to 60 percent? What is an abstract that representation of reality? Is Greece considered a developed developing or third world country? What is benefit principle of taxation? Which dose not motivate entrepreneurs? How much money do you need for monopoly? Why GDP equals aggregate expenditure and aggregate income? What are the benefits and drawback for a country that is relying more on the market system? How much is 400 euro worth in sterling? Who gave the statement Money is what money does? What is intensive subsistence agriculture? Quelle est la Definition de Agriculture d'exportation? How much is 700 dollars in euros? What are three things that make a competition unfair? What is a shortage of money called? What is the value of a 1974 Eisenhower silver dollar?