The document summarizes a presentation on the standard trade model. It discusses three main topics: the standard model of a trading economy, tariffs and export subsidies, and international borrowing and lending. The standard model examines production possibilities, supply and demand curves, and the effects of terms of trade. Tariffs and export subsidies are trade policies that countries use to restrict or promote international trade. International borrowing and lending relates the standard trade model to trade over time through foreign debt.