Economic stagnation and recession result in unemployment and poverty

Assume that the yuan-dollar nominal exchange rate at the beginning of 2012 was 4 yuan per dollar and at the beginning of 2013 was 6 yuan per dollar

Given this information, identify the currency that appreciated and the currency that depreciated over 2012.

What is the crucial difference between inflation generated on the demand side versus inflation generated on the supply side?

a. Demand-side inflation is short-lived, while supply-side inflation lasts for a long time. b. Demand-side inflation leads to budget surpluses, while supply-side inflation contributes to budget deficits. c. Supply-side inflation is subject to control of policy makers, while demand-side inflation is beyond their reach. d. Demand-side inflation is normally accompanied by rising real GDP, while supply-side inflation may be accompanied by falling real GDP.