Characteristics of demand for antibiotics in primary care: an almost ideal demand system approach
We model demand for different classes of antibiotics used for respiratory infections in outpatient care using a linear approximate almost ideal demand system approach. We compute elasticities to socioeconomic determinants of consumption and own- and cross- price elasticities between different groups of antibiotics. We find significant elasticities between newer/more expensive generations and older/less expensive generations of antibiotics. The larger use of more expensive antibiotics is also associated with the self-dispensing status of practices, ceteris paribus.
Antibiotic use, Demand equations, Demand elasticities, Almost Ideal Model, Self-dispensing
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