Non-tariff barriers are tools that countries use to restrict trade such as regulatory or legal barriers or slow processing of goods at borders.

Convexity of indifference curves implies that consumers are willing to

A) give up more "y" to get an extra "x" the more "x" they have. B) give up more "y" to get an extra "x" the less "x" they have. C) settle for less of both "x" and "y." D) acquire more "x" only if they do not have to give up any "y."

Of what use is national income accounting to economists and to policy makers?

What will be an ideal response?