Which country is currently the biggest producer of greenhouse gases?

Why do economists view structural budget deficit as a good measure of the direction of the fiscal policy?

Answer the following statement(s) true (T) or false (F)

1. The price of a good accurately reflects the total value it creates for society. 2. The Invisible Hand Theorem shows that competitive markets create the maximum possible social gain, even when all interactions among the markets are taken into account. 3. In an Edgeworth box, all Pareto-optimal allocations lie within the region of mutual advantage. 4. In an Edgeworth box economy, a competitive equilibrium must lie on the contract curve within the region of mutual advantage. 5. The gains from international trade are greatest when a country's autarkic relative prices are similar to the world relative prices.