Pensions now make up 17 percent of Greece's economy, and they have become a safety net for society as a whole.

At $18bn this year, they are also the government's biggest expense, despite being cut by half to an average of $900 a month per person. However, there simply are not enough contributions coming in to pension funds because a quarter of Greek workers are unemployed.

Al Jazeera's John Psaropoulos reports from Athens, Greece.

Source: Al Jazeera