Paranirupanathan, C.Wijekoon, P.2024-09-112024-09-112009-12-03Peradeniya University Research Session PURSE -2009, Proceeding and Abstracts, Vol.14,3rd December, 2009, University of Peradeniya, PP. 577https://ir.lib.pdn.ac.lk/handle/20.500.14444/942ITMathematics and StatisticsColombo consumer's price index CCPIAnalysis of cointegration relationship between the new Colombo consumer's price index (CCPI (N)) and the old CCPI