How is each nation's economic system
determined?

Economists can measure the performance of an economy by looking at gross domestic product (the market value of all goods and services produced by the economy in a given year.) In the United States, it is calculated by the Department of Commerce.

Explanation:

Newspaper publishing is a dying industry for a multitude of reasons. The main one being the internet. With the world wide web at our fingertips news is coming at us faster then ever. We can pick up our phones and look at a news article 20 minutes after the event happened whereas you'd have to wait until the next day, or many even the day after that to see what happened if you relied on newspapers.