The data is available https://www.rbnz.govt.nz/statistics/key-graphs. You should create graphs. Please ensure that you include units, axis labels, and a title. If you need to annualise quarterly data, use a simple average of the quarterly data.

1.Using data from 1989 to the present, plot the original (Samuelson-Solow) Phillips curve ().

2.Using data from 1989 to the present, plot an expectations-augmented Phillips curve ().

3.Is there evidence of a Phillips curve relationship for New Zealand (either version)? What further changes to your specification might you consider to improve the fit?