What are the challenges faced by economists?

What role slavery play mercantile system? How much is 100 baisa to uea dirham? Why we study economics The ten best reasons? How does economics affect business? Raising only enough crops and livestock to support a family or a village is called commercial farming? Is it true that a business firm that controls all the competition in an industry holds a trust over the industry? What economic system was favored by small business owners? What level of government did the people expect to cure the economic ills during the depression? What was the per capita income in southlake tx in 2009? How would the demand have to change for a price change to be unitary elastic? What are the objectives of entrepreneurship? Would saline increase urine production? What are the similarities of a city and a farm? When and where did he first Walmart open? What is the historical background of inventory system? What economy does the Savannah river have? How is the Us dollar compare in value with other countries? What was Dow Jones on january 1 2017? Who are the top export partners of the US? What is the value of a 1999 silver eagle dollar?