Zimbabwe bond notes: Is this the return of a currency?

This week Zimbabwean President Robert Mugabe approved the introduction of bond notes as the new payment for transactions. But many fear this could be a return to a domestic currency abandoned in 2009 as hyperinflation crippled the economy. Neville Mandimika, Africa Strategist at Rand Merchant Bank and John Robertson, Economist at Robertson Economics join CNBC Africa for more.