Jeroen Pietryga

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Coupons were invented in 1888 by John Pemberton and Asa Candler, cofounders of the Coca-Cola Company. The early coupons for Coca-Cola showed the classic cursive logo in the center, with the headline “This card entitles you to one glass of Coca-Cola” and along the sides, it encouraged you to go to any dispenser to redeem the coupon.
The Cold Start Problem: How to Start and Scale Network Effects
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