This episode of Planet Money Summer School kicks off a global tour exploring how different countries solve economic problems. It examines Australia's water market as a solution to water scarcity, highlighting both efficiency gains and farmer backlash against speculators. The episode also traces the invention of inflation targeting in New Zealand, showing how central bank credibility and transparency can shape economic expectations and outcomes.
Summarized by Podsumo
Australia's water market allows trading water rights, increasing efficiency by $117 million annually, but farmers protest against 'water flippers' who drive up prices.
New Zealand pioneered inflation targeting in the 1990s, with a target of zero to two percent, which later inspired central banks worldwide including the US Federal Reserve.
The concept of 'multiple equilibria' explains how expectations can create reality: if everyone expects low inflation, they act accordingly, making low inflation a self-fulfilling prophecy.
"Economic efficiency is saying the size of the pie got bigger. It's not promising your slice got bigger."
"The first thing that other countries are... is their laboratories. They're places where other countries are trying different policies, different approaches, and we get to watch how they play out."
"If I believe that inflation is going to be low, I'm going to walk into my shop and I'm not going to raise my prices by very much."