The definition of plane centralcurve with positive integer degree was proposed.
给出了平面正整数次中心曲线的定义和中心命题。
2
The inversion of its yield curve last happened two weeks ago but, unlike then, purchases of Rome's bond by the European Central Bank on Tuesday failed to undo the damage.
In the modern world, we often take a shortcut and just assume that the central bank adjusts the money supply so as to achieve a target interest rate, in effect choosing a point on the IS curve.