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This paper studies the contribution of doctor and patient 'habit' to persistence in market shares in prescription drug markets. My unique panel dataset allows me to estimate the probability of switching brands as a function of patient and doctor attributes, with an emphasis on past prescribing...
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Using data from the US automobile market, we empirically examine the link between competition and innovation …. Consistent with a large literature, we use patent counts as a measure of innovation. The combination of the US market's economic … interesting market to examine the link between competition and innovation. We use firm-level time-series data over a long horizon …
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Drug development is costly so drug makers need accurate estimates of sales potential. However, sales forecasts are often unreliable. Our study is unique in combining a large sample of drug classes with data on entry order and promotional spending to estimate peak market share while controlling...
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