RDP 2005-01: Long-Term Patterns in Australia's Terms of Trade Equation (4)

v a r ( t o t ) = v a r ( p t X d t ) + v a r ( p t M d t ) 2 c o v ( p t X d t , p t M d t ) MathType@MTEF@5@5@+=feaagCart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaacbiGaa8NDaiaa=fgacaWFYbWaaeWaaeaacaWG0bGaam4BaiaadshaaiaawIcacaGLPaaacqGH9aqpcaWF2bGaa8xyaiaa=jhadaqadaqaaiaadchadaqhaaWcbaGaamiDaaqaaiaadIfaaaGccqGHsislcaWGKbWaaSbaaSqaaiaadshaaeqaaaGccaGLOaGaayzkaaGaey4kaSIaa8NDaiaa=fgacaWFYbWaaeWaaeaacaWGWbWaa0baaSqaaiaadshaaeaacaWGnbaaaOGaeyOeI0IaamizamaaBaaaleaacaWG0baabeaaaOGaayjkaiaawMcaaiabgkHiTiaaikdacaWFJbGaa83Baiaa=zhadaqadaqaaiaadchadaqhaaWcbaGaamiDaaqaaiaadIfaaaGccqGHsislcaWGKbWaaSbaaSqaaiaadshaaeqaaOGaaiilaiaadchadaqhaaWcbaGaamiDaaqaaiaad2eaaaGccqGHsislcaWGKbWaaSbaaSqaaiaadshaaeqaaaGccaGLOaGaayzkaaaaaa@667F@