CANNES – While there has been a big movement to buying and selling digital advertising through automated exchanges at agency trading desks, several “premium” publishers are looking to trade in a more closed, private exchange scenario, where they have more control over their inventory and pricing.

VivaKi’s Audience on Demand unit is expanding its private market exchange initiative to meet the demand, says Marco Bertozzi, Managing Director EMEA in this interview with Beet.TV

We spoke with him last week at the Cannes Lions festival.