Forecasting Branded and Generic Pharmaceuticals

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

Fersiynau electronig

Dangosydd eitem ddigidol (DOI)

We forecast UK pharmaceutical time series before and after the time of patent expiry. This is a critical point in the lifecycle, as a generic form of the product is then introduced into the market, while the branded form is still available for prescription. Forecasting the numbers of units of branded and generic forms of pharmaceuticals dispensed is becoming increasingly important, due to their huge market value and the limited number of new ‘blockbuster’ branded drugs, as well as the imposed cost for national healthcare systems like the NHS. In this paper, eleven methods are used to forecast drug time series, including diffusion models (Bass model & RPDM), ARIMA, exponential smoothing (Simple and Holt), naïve and regression methods. ARIMA and Holt produce accurate short term (annual) forecasts for branded and generic drugs respectively, while for the more strategic horizons of 2–5 years ahead, naïve with drift provides the most accurate forecasts.
Iaith wreiddiolSaesneg
Tudalennau (o-i)344-357
CyfnodolynInternational Journal of Forecasting
Cyfrol32
Rhif y cyfnodolyn2
Dyddiad ar-lein cynnar22 Ion 2016
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 1 Ebr 2016
Gweld graff cysylltiadau