In an open economy, if domestic citizens decide to save more, then the domestic real interest rate will ________ and the level of capital investment in the country will ________, holding other factors constant.

To an economist, scarcity means that:

a. it is very time-consuming to find a good. b. at a zero price, the available quantity of a good is insufficient to meet people's wants. c. a good is unavailable even at very high prices. d. at the current market price, the amount available is less than the amount that people want and are willing to pay for. e. resources are unlimited but people's desires are limited.

Java Hut, a U.S. coffee retailer, buys $10 million worth of coffee beans from Colombia. It also pays $5 million for paper cups and utilities, all produced in the U.S. It sells the coffee it produces using the above inputs to U.S. consumers for $50 million. Overall how do these expenditure affect net exports? How do these expenditures effect U.S. consumption?