Robert Bloom, former US Chairman and CEO of Publicis Worldwide—a French multinational advertising and communications company—the centerpiece of a $4.6 Billion global marketing services company, knows the modern consumer. In fact, he calls them The New Experts in his book titled, The New Experts: Win Today’s Newly Empowered Customers At Their 4 Decisive Moments.

Today’s consumers are armed with what Bob calls the Big Three: 1) total access to information 2) total choice and 3) price transparency.

Brand loyalty is gone. 30 years ago, 4 out of 5 consumers bought the same brand. In 2009, only 1 out of 5 consumers did—a seismic shift.

Today, sellers live in a glass house. They must learn to think like buyers. To do so, they must consider the four decisive customer moments: 1) the Now-or-Never Moment 2) the Make-or-Break Moment 3) the Keep-or-Lose Moment and 4) the Multiplier Moment.

Listen to insight from a leading expert in the field of consumer behavior below: