Answer:
a. Increased wealth due to lower prices and greater product diversity b. Ability to use productive resources found only in other countries.
Step-by-step explanation:
A: Benefits of International trade for households, is an increase in wealth as a consequence of the drop in prices of goods that are imported (because these products are produced efficiently abroad), and a potential drop in prices of local goods because productive factors could potentially be more efficiently allocated increasing the productivitiy of such factors. Households also benefit because a higher diversity of products could expand their utility curve by richer consumption alternatives. B: Benefits of international trade for firms is an expansion of the disposable resources available to produce local goods, which could increase the productivity per productive factor by relatively lower prices of resources and higher quantities.