Giorgos Stathakis said he hopes to receive a positive message from European Union leaders later in reference to the country's strained finances.
Greece has until Friday to produce a new reform plan, before all EU leaders meet on Sunday to decide whether to accept the proposal.
Economist Thomas Piketty contended that Europe needs to forgive Greek debt or live with possibly dire consequences.
All 28 heads of state from the EU expect to meet on Sunday to discuss Greece's proposals for reform, Germany's Merkel said.
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Frédéric Oudéa, CEO of Société Générale, talks about the possible impact of a Grexit on the markets.
Maarten-Jan Bakkum, senior multi-asset strategist for NN Investment Partners, talks about the situation in Greece following last weekend's bailout referendum.
Anthony Attia, CEO of Euronext Paris, talks about the impact of Greece on bond markets and IPOs.