In other words, it is the total value which a country produced in a year. So GDP is a scale to compare different countries ' activities in the one year period. In the article "US jobs data pressure Aussie dollar", it indicated that good economic data in US showing improvement in employment conditions and consumer and business confidence. On the other side, Australian dollar has slipped against US dollar amid a better outlook for US economy. In results, US dollar has stronger buying power in the world market, so it is a good sign for US to gain further advantages in export and import. In the structure GDP, production is equals to expenditure and equals to income. The more a country produced equal to the more it spend and gained on income. During the financial crisis begins in USA since last year, US government pushes a lot on the international business and trading, create lots of job opportunities for the local people which results the increase on domestics productions and labor incomes. So the total GDP of US is going up after meeting a hard time in financial crisis. As established by international trade theory, an improvement in the terms of trade, other things equal, is income and welfare enhancing…