1. Bretton Woods:
An international monetary system operating from 1946-1973. The value of the dollar was fixed in terms of gold, and every other country held its currency at a fixed exchange rate against the dollar; when trade deficits occurred, the central bank of the deficit country financed the deficit with its reserves of international currencies. The Bretton Woods system collapsed in 1971 when the US abandoned the gold standard.
2. Capital:
Wealth in the form of money or property owned by a person or business and human resources of economic value. Capital is the contribution to productive activity made by investment is physical capital (machinery, factories, tools and equipments) and human capital (eg general education, health). Capital is one of the three main factors of production other two are labour and natural resources.
3. Gross national product (GNP):
Gross national product is the value of all final goods and services produced within a nation in a given year, plus income earned by its citizens abroad, minus income earned by foreigners from domestic production. The Fact book, following current practice, uses GDP rather than GNP to measure national production. However, the user must realize that in certain countries net remittances from citizens working abroad may be important to national well being. GNP equals GDP plus net property income from abroad.
4. Correlation coefficient:
Denoted as "r", a measure of the linear relationship between two variables. The absolute value of "r" provides an indication of the strength of the relationship. The value of "r" varies between positive 1 and negative 1, with -1 or 1 indicating a perfect linear relationship, and r = 0 indicating no relationship. The sign of the correlation coefficient indicates whether the slope of the line is positive or negative when the two variables are plotted in a scatter plot.