Macroeconomics' need for government intervention ' Micron said revenue in the first quarter of fiscal 2018 was $6.83 billion, up 71% from a year earlier, and 10.8% month-on-month. GAAP reported a net gain of 26.8 in beauty, compared with $180 million in the same quarter last year and $2.37 billion last quarter. Under the theoretical framework of the theory, the theory of commodity market equilibrium and the monetary market equilibrium of Keynesian theory are unified. Marx's theory of interest rate decisions from the perspective of the source and essence of interest, taking into account the institutional factors in the role of interest rate decisions of interest theory, its theoretical core is the interest rate is determined by the average profit margin. Marx believed that under capitalism, interest is a part of profit and a form of conversion of surplus value.