motor cars for kids Under the conditions of open economy, the scale of international capital flows is huge, which greatly exceeds international trade volume, indicating the great development of financial globalization. The impact of interest-rate differentials on exchange rate movements is more important than in the past. When a country tightening credit, interest rates will rise, character formed in the international market interest rate difference, will cause the short-term funds internationally mobile, capital generally always is flowing from countries with low interest rates to countries with high interest rates. What does that mean? As hicks income concept did not specify what is called "equal wealth", and thus the income concept formed the basis of many debates concept, and the theory of accounting earnings, especially the capital preservation theory has a great influence. In accounting, people used to call "maintaining the same level of affluence" as capital preservation. Interest determines the regularity of prescriptive (interest this qualitative rules will determine the amount of the rules), the amount of interest depends on profit, interest rate depends on the average profit margin. Marx further pointed out that, between average profit margin and zero, interest rate depends on two factors: one is profit margin; The second is the proportion of total profits allocated between lenders and borrowers. The research analysed five years’ trading connection between 1000 UK individuals split evenly into three age-based groups: 18-30, 30-50 and 50+, while using highest age being over 80. The five years ended in October 09 and so covered bull and bear markets, the banking collapse of 2008 and the volatile 2008/9 markets.