摘要：The artide cxamincs the evolution of the cconomists' vicws on the mcthods of detection and studying of business activity fuctuations in a market cconomy.The basic mcthodological approaches to the analssis of the busincss cycle - mathematical-deductive,statistic-historical and cconometric - were dcfined.The currcent research of fluctuatious in business activity - such as residual method,economctric mcthods of direct measu ring,harmonic analysis and square polynomials methods一were analyzed.There开as stu died the method of cycle detection by the numerical series of unverified data.
关键词：macroccononmic inslability.luctiuations in busincss activily;busincss cyclc;rcscarch incthods.
