Sarvary, M.

durable price consumer contraction marketing cycle business business-cycle fluctuations fluctuation consumer durables sensitivity series asymmetry volatility business-cycle industry statistic journal extent comovement product business cycles business cycle result component research purchase sales evolution steepness deepnes 24 durables economy period evidence stage change expansion deepness asymmetry value company activity analysis pattern level impact observation management evolution section replacement purchases comovement elasticity filter reaction replacement study nature range science sales patterns skewnes adjustment triple expenditure table figure variation finding procedure increase review model time series variability steepness asymmetry number non-parametric triples test sample elasticity dekimpe effect