The Olympics are amazing, but what do they cost?

The Paris Olympics were designed to be 'infrastructure light' to avoid outlandish construction costs,  yet the overspend is estimated at $US1 billion. 

Since the 2016 Rio Olympics' budget overrun by 352 per cent, many cities withdrew their bids in the face of strong public opposition.  So should Olympic Games be held in one permanent location every four years?  And how are plans for Brisbane's 2032 Olympic Games progressing? 

• Andrew Zimbalist, Professor of Economics at Smith College, Massachusetts. Author of Circus Maximus and Boston Olympics: How and Why Smart Cities Are Passing on the Torch
• Michael Bleby, Deputy Property Editor at the Australian Financial Review