Should breast milk be included in our gross domestic product?
Dairy contributes 3.5 per cent or $7.8 billion to New Zealand's GDP - but what value do we - or should we - put on the hours and litres of human milk produced every day by women?
Dr Julie Smith has crunched the numbers for Australia and says the 44 million litres of breast milk produced each year is worth $3 billion Australian dollars.
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