The analysis in this report employs a cost driver model to disaggregate and quantify the impact of each of the major drivers of change for the two main components of prescription drug expenditures: drug costs and dispensing fees. [...] Drug Cost Component The rates of change in the drug cost component of prescription drug expenditures in public drug plans have been steadily declining in recent years, with the overall cost levels decreasing in 2012/13 by 0.8% compared to 2011/12. [...] While British Columbia and and dispensing fees follows the methodological Newfoundland and Labrador participate in the approach detailed in the PMPRB report The NPDUIS initiative, data for these provinces Drivers of Prescription Drug Expenditures: was not available at the time of the study. [...] Without the have either a positive (increasing) or negative influence of price effects, the combined effect (decreasing) impact on drug costs if brand of increases in the active beneficiary populations, prices increase or generic prices decrease, in the volume of drugs used and in the use of respectively.