profit overhead India's top tax authority is expanding its probe into bitcoin investments and transactions, and last week visited at least nine bitcoin exchanges across the country. At that time, there have been reports, tax authorities suspect there is tax evasion in this field, has started "investigation", in order to make clear the status of investors and traders and trading, the related bank account holder's identity and other details. Torquay’s Fenster Fabrications is set to feature in an upcoming episode of ITV 1’s hit home improvement show Love Your Home and Garden. The diversity of creators and the regulation of innovative and friendly regulation is essential to the establishment of a mechanism for equality and human rights characteristics. In the early 20th century, famous American economist elvin fisher developed the theory of economic gain. In its book "the nature of capital and yield", first, the concept of yield is analyzed in terms of the performance of earnings, and three different types of benefits are proposed: Generally speaking, the interest rate varies according to the term of measurement, indicating that the method has annual interest rate, monthly interest rate and daily interest rate. Interest rates are an important tool for regulating monetary policy, and they are also used to control economic growth, such as investment, inflation and unemployment. Reasonable interest rate plays an important role in the economic leverage of social credit and interest rate.