How much does GDP rise in each of the following scenarios:
1. During a recession, the government raises unemploymemnt benefits by $100 million.
2. A new US airline purchases and imports $50 million worth of airplanes from the European company airbus.
3. A new European airline purchases $50 millin worth of airplanes from the American company Boeing.
4. A store buys $100,000 of chocolate from Belgium and sells it to it's consumers in the United States for $125,00.