to gain profit This year, ms lagarde said there was a marked slowdown in activity and the UK's recent performance was UK faces longest fall in living standards since records began, says thinktank Investment in securities provides an important channel for the society to raise funds, which is an effective way for enterprises to raise direct financing. Interest rates have a very important impact on the exchange rate, which is the most important factor affecting the exchange rate. We know that the exchange rate is the relative price between the two countries' currencies. Like other commodity pricing mechanisms, it is determined by the supply and demand relationship in the foreign exchange market. Foreign exchange is a kind of financial asset, which people hold because it can bring the benefits of capital. Rolling planning laws is according to the principle of "almost fine far" a certain period of the plan, then according to the plan implementation and environmental changes and adjustments and changes to the plans for the future, and by backward, combine short-term and medium-term plans of a kind of planning method.