Centrally planned economies like China produce relatively little pollution.

An open economy

A) can save only by building up its capital stock. B) can save only by acquiring foreign wealth. C) cannot save either by building up its capital stock or by acquiring foreign wealth. D) can save either by building up its capital stock or by acquiring foreign wealth. E) can save by avoiding excessive imports.

Refer to above figure. With free trade and no tariffs, what is the quantity of Widgets produced domestically?

What will be an ideal response?