Dairy is the country's largest export industry; but recent figured from Stats NZ show domestic butter prices have surged 65% and some people are struggling.
Surely, Willis will understand that global supply problems and high demand for New Zealand's products are driving local prices higher.
About 95% of New Zealand's dairy products are exported, which means the international market determines domestic prices.
It is a double-edged sword, where high prices are good for the country's economy but tough for domestic shoppers.