【判断题】The economist's distinction between long and short run captures the idea that quantities of some factor inputs can be varied in the short run but not in the long run.
【简答题】suppose the price elasticity of demand for heating oil is 0.2 in the short run and 0.7 in the long run. if the price of heating oil rises from $1.8 to $2.2 per gallon, what happens to the quantity of ...