How did technological changes in the early 1900s affect New Zealand's export economy?

New technology, such as electricity, sparked industrial growth and made production faster and less expensive.

Explanation:

Living standards in New Zealand were among the highest in the world between the late nineteenth century and the 1960s. But New Zealand’s economic growth was very sluggish between 1950 and the early 1990s, and most Western European countries, as well as several in East Asia, overtook New Zealand in terms of real per capita income. Hope it helps:)