What Is a Dollar Roll?

The United States dollar (United States dollar currency abbreviation: USD; ISO 4217 currency code: USD; symbol: USA $) is the legal currency of the United States of America. The current dollar bills in circulation are versions of banknotes issued since 1929.

[mi yuán]

In 1792, the US dollar formed a currency zone in 13 colonies, and the United States was only a country with 4 million people at the time. By the end of the 19th century, it had become the most powerful country in the world. By 1914

In 1792, the dollar adopted

"$" Is a representative symbol of the dollar sign.

The origin of the "$" dates back to the early 16th century, when Spain cast a

Exchange rate table from 1971 to 2014

years	1971	1972	1973	1974	1975	1976	1977	1978	1979	1980	1981
exchange rate	2.462	2.245	1.989	1.961	1.859	1.941	1.858	1.684	1.555	1.498	1.705
years	1982	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992
exchange rate	1.893	1.976	2.320	2.937	3.453	3.722	3.722	3.765	4.783	5.323	5.516
years	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003
exchange rate	5.762	8.619	8.351	8.314	8.290	8.279	8.278	8.279	8.277	8.277	8.277
years	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014
exchange rate	8.0922	8.1917	7.9735	7.5215	6.9385	6.83	6.615	6.452	6.298	6.193	6.1461

(Note: The annual average, the amount of 1 yuan exchanged in RMB, special note: from 1949 to 1952

in"

Mainly in the United States.

Five years after the first dollar crisis, in the mid-1960s, the United States expanded the war of aggression, and the balance of payments further deteriorated. The dollar crisis broke out in March 1968

A severe second economic crisis occurred. In more than half a month, the United States lost more than $ 1.4 billion in its gold reserves. In one day on March 14, 1963, the London gold market traded a record number of 350-400 tons. Faced with such a situation, the gold pool cannot cope with it. The members of the gold pool (the United States, the United Kingdom, France, Switzerland, Germany, Italy, the Netherlands, and Belgium were established in October 1961). After consultation, it was decided that the United States and the gold pool can no longer be charged at 35 dollars per ounce of gold The price of gold in the free market, that is, the official price of gold is no longer maintained, the gold market listens to its free rise. However, governments and

Several methods to identify real and fake dollars:

1. Feeling identification: The front and back of real dollars are printed with engraved gravure.

US Dollar Index

In the last two weeks of the first half of 2013, global stock markets passed a new round of plunges induced by Federal Reserve Chairman Ben Bernanke and China's "money shortage." Looking at the investment opportunities in the second half of the year, Pu Yongzheng, chief investment officer of UBS Wealth Management Asia Pacific, believes that the US stock market, whose fundamentals are improving, is still the preferred asset class, and the dollar may continue to strengthen. In contrast, the outlook for emerging markets, gold, etc. is not promising. Especially in emerging markets, as the United States shifts to quantitative easing, some emerging economies with poor current account conditions may experience similar crises as in 1997-1998.