Kimberlee Weatherall, ‘The Consumer as the Empirical Measure of Trade Mark Law’

Abstract:
Although consumer responses to signs and symbols lie at the heart of trade mark law, courts blow hot and cold on the relevance of empirical evidence – such as surveys and experiments – to establish how consumers respond to alleged infringing marks. This ambivalence is related to deeper rifts between trade mark doctrine and the science around consumer decision-making. This article engages with an approach in ‘Law and Science’ literature: looking at how cognitive psychology and related disciplines conceptualise consumer decision-making, and how counterintuitive lawyers’ approaches appear from this perspective. It demonstrates how, especially when proving confusion, decision-makers in trade mark demand the impossible of empiricists and are simultaneously blind to the weaknesses of other sources of proof. A principled divergence, without seeking to collapse the gaps between legal and scientific approaches, but taking certain small steps, could reduce current problems of proof and contribute to better-informed, more empirically grounded decisions.

Kimberlee Weatherall, ‘The Consumer as the Empirical Measure of Trade Mark Law’, Modern Law Review volume 80, issue 1, January 2017, pages 57–87.

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