10.1 National Income Accounting and the Balance of Payments Other Concepts o Because the Balance of Payments(BP) can be abbreviated to capital mobility and net export, then: BP=cF+NX a(r-r)+g-nr-mE P 复表经济学院10.1 National Income Accounting and the Balance of Payments & Other Concepts Because the Balance of Payments (BP）can be abbreviated to capital mobility and net export, then： * * ( ) P P a R R g n Y m E B P CF NX = − + − −  = +