How do we measure the product in an economy?

What role did carnegie have on free enterprise? What amendment is related to economics? What are the nine characteristics of the market system? How do tides affect livelihood? What is involved in the political social technological analysis? Are any other entities outside the OPEC nations involved in the production and sa le gasoline? How are oil wells valued? What causes graduate unemployment? What happens to the demand curve when determinants change? Religious intolerance high rents on land scarcity of resources are all reasons of what? How much is 1000pounds in euros in? Why did the world economy depend on the strength of the U.S. economy in the 1920's? Who is enterprenue? What is californias number one produced commodity? Why do countries need money? Each individual agrees to provide some part of the labor for the business.? A banker and a member of Britain's parliament who developed the iron law of wages and introduced the idea of comparative advantage in Principles of Political Economy and Taxation? What is main criterionis used by world bank in classfying different countries what are the limitation of theabove criterion if any? The Wealth Effect? Do market and supply curves have negative slopes?