What is a real variable in economics?

What makes it so easy for Canada to trade with the US? What is the average cost of a 3 bedroom house in the US today? What are the source of human capital formation? Why are jeans so expensive? In the circular flow of goods and services what does the product market represent? How would it be possible for self interest to result in something beneficial for society as a whole? What was an effect of demonitizing silver? What are the role of rural banks in economic development? How do you sell houses to the bank on monopoly game? Put the steps below in the correct order to show how a cost-benefit analysis done? What is Fiscal cost? What role does the US government play in the free market economy? What is regulated capitalism? How long has the UK been in economic recession? How does inflation effect the job market? What is the business's influence on political process? Why are stolen diamonds easy to resell without being traced? What are the Objectives of balance of payments? What is the difference between the extensive margin and intensive margin in economics, and how do they impact overall market dynamics? What is the market value of a 1964 bu Washington d quarter?