For Paul Boothe and Sandra Octaviani, fiscal credibility is achieved when government do what they say, i.e. walk the fiscal talk.
It's crucial when examining the Ontario Budget because when businesses and consumers believe their government, they will adjust their own behaviour accordingly. Governments that don't get the credible stamp of approval are in for a more difficult time.
So does the Ontario Budget "walk the talk"? Boothe and Octaviani say yes, and explain in their article for Macleans.