Twelve Ways to Create Barriers to Competitors
Harvard Business Review
MAY 20, 2011
Proprietary technology. Diamond's (formerly P&G's) Pringles, Prius' Hybrid Synergy Drive, and Dreyer's Slow Churned Ice Cream all have technologies not easily copied. David Aaker is the Vice-Chairman of Prophet and the author of Brand Relevance: Making Competitors Irrelevant and the davidaaker.com blog on branding.
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