How many children should we have for the country?

From Sunday Morning, 10:04 am on 13 May 2018

New Zealand's population is growing quickly but some economists and environmentalists say population growth comes at a cost. Dr Suzi Kerr from Victoria University and Professor Paul Spoonley from Massey University discuss the economic and environmental impact of population growth, and ask how many children should we have to protect the environment and grow the economy.