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As the Greek Prime Minister calls a referendum on the EU-IMF bailout package we get the latest from our reporter Joe Miller in Athens.

And after the second deadly attack on tourists in Tunisia this year, we'll assess the economic fallout with Youssef Cherif a political analyst in Tunis.

Also in the programme, with same-sex marriage set to become legal in all 50 American states, we assess the business impact of the Supreme Court ruling with Professor Lee Badgett, an economist at the University of Massachusetts Amherst.

We also speak to the billionaire boss of Shutterstock -one of the world's biggest digital imaging companies. With us for the duration of the programme is Colin Peacock of Radio New Zealand from Wellington.

(Photo: Greek Prime Minister Alexis Tsipras Credit: AP)