Question

Some products (such as roads, sewer systems, and railroads) are not adequately supplied by the marketplace acting alone. Therefore, choices about building such things are made by

Answer 1

the government.

Step-by-step explanation:

Basically when the market doesn't supply something for the public, the government ends up supplying it. For example, our road systems are not built by private companies acting on their own, but they are built by the government's decisions using tax money.

Answer 2

The government

Step-by-step explanation:

Since the market has no incentive to build roads, sewer systems and railroads to the extent that is necessary for people, then the government is responsible for building such things. This ensures that people are able to have these services in order to live full lives. It also contributes to the growth of the economy, and of foreign investment.