Final answer:
If a country must decrease current consumption to increase the amount of capital goods it produces today, then it faces a trade-off between present and future consumption.
Step-by-step explanation:
If a country must decrease current consumption to increase the amount of capital goods it produces today, then it faces a trade-off between present and future consumption. When a country decides to invest more in producing capital goods, it means using resources that could have been used for immediate consumption. This trade-off requires sacrificing present consumption in order to have more capital goods and increase future production and consumption.