Jimmy Q. Li

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T he feasibility of using field experiments to optimize marketing decisions remains relatively unstudied. We investigate category pricing decisions that require estimating a large matrix of cross-product demand elas-ticities and ask the following question: How many experiments are required as the number of products in the category grows? Our main result(More)
Dispersion of repolarization may contribute to arrhythmias. To determine whether an electrical field stimulus (S2) with a nonuniform potential gradient can induce a dispersion of repolarization, we applied 5 ms rectangular S2 that had a nonuniform or uniform potential gradient during the action potential (AP) of bathed frog ventricular strips. One group had(More)
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