The New Zealand Performance of Services Index (PSI) is an economic indicator published by BusinessNZ that measures the level of activity in the New Zealand service sector.

The index is compiled by surveying New Zealand service sector purchasing managers and includes data on new orders, production, supplier delivery times, employment, prices, and inventories. The index has a baseline value of 50, with values above 50 indicating expansion, values below 50 indicating contraction, and values at 50 indicating no change in activity.

The New Zealand PSI is typically released on a monthly basis and is an important indicator for understanding the performance of the New Zealand service sector. The index is used by governments, businesses, investors, and economists for market analysis, decision-making, and forecasting economic trends.

In summary, the New Zealand Performance of Services Index is an important economic indicator for measuring the level of activity in the New Zealand service sector and has significant implications for understanding the country's economic performance and forecasting future economic trends.