The need for quasi-experimental methodology to evaluate pricing effects

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3 Scopus citations


Family planning program managers may be easily misled by conclusions about the effects of price increases on the demand for services when the findings are based on pre-experiments such as the single-group pretest-posttest study, generally believed to be practical. This report presents financial and service data from clinics in Ecuador, which, analyzed according to the single-group pretest-posttest design, would suggest that the demand for intrauterine device services is inelastic. However, considerable demand elasticity is detected when data are analyzed according to more rigorous quasi-experimental designs. -from Authors

Original languageEnglish
Pages (from-to)375-381
Number of pages7
JournalStudies in Family Planning
Issue number6 Part 1
StatePublished - 1993


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