Which of the following does not involve exports and imports?

If the price of lumber rises, then, in the market for sawdust

A) the supply curve of sawdust shifts leftward. B) the supply curve of sawdust shifts rightward. C) there is a movement downward along the supply curve for sawdust. D) there is a movement upward along the supply curve for sawdust.

An increase in the tax wedge associated with a given economic activity will decrease the level of that activity

Indicate whether the statement is true or false