"The effect of Covid-19 on the iwi in this year's report varied depending on the iwi assets and also their reporting period," TDB says, citing Te Wai Pounamu's Ngāi Tahu, which laid off staff and put several of its businesses into hibernation.
Tūhoe returned the least on its investments, earning minus 2.2 per cent on its assets, followed by Ngāi Tahu at -2.1 per cent and Waikato-Tainui with a -1.1 per cent return.
Tūhoe was hit by negative revaluations and unrealised losses due to Covid, with falling values in forestry assets, carbon credits and managed funds.
Ngāi Tahu's first negative return in more than 20 years was driven by a $53m revenue drop, partly due to falling returns from tourism, primary industries and construction.
Waikato-Tainui faced immediate liquidity challenges because of last year's lockdown. The Base shopping centre in Hamilton and its hotels were "severely impacted", forgoing an estimated $11m in income.
Matthew Tukaki, New Zealand Māori Council executive director, said the report only scratched the surface of the true Māori economy, worth far more than $9.8b, because the study only captures iwi which publicly report their annual accounts.
Assets of other iwi, hapū, registered charities and private enterprise would boost that $9.8b figure considerably if that was captured, Tukaki said.
"The problem, I think with reports like this, is that it's not even a sample size."
Small Māori businesses, particularly those in retail which sold from stalls and markets, were increasingly online. Although forestry assets were captured by the iwi, Māori often had associated businesses in logging, trucking and other areas, Tukaki said.
Media tended to highlight infighting among iwi, hapū or directors of Māori businesses, giving a biased view of tangata whenua, "yet the irony is that it's no different to Pākehā. It's just how it's reported".
The Berl think tank last month estimated the whole Māori economy - not just the post-settlement iwi - at $68.7b.
And in 2017, KPMG estimated the Māori asset base at $50b, including an estimated 50 per cent of New Zealand's fishing quota and about 30 per cent of plantation forests.
There are about 300,000 Māori in Aotearoa's workforce, with 74,000 of them in high-skilled jobs, said Hillmare Schulze, chief economist at Berl. Māori were still key players in the more traditional primary sector areas, "but the asset base is increasingly diversified".
TDB analysed nine iwi, including the three richest which are:
Ngāi Tahu
Property dominates Te Wai Pounamu's iwi, at 42 per cent of total assets, but it also has 11 tourism businesses, which have been hammered by the pandemic. Primary industry assets are in farming, fishing, forestry and honey. Farmland and buildings have a fair value of $214 million. Fishing assets include quota, licences and shares in fishing company Moana NZ. Those are worth $156m. Financial assets make up 12 per cent of the total, including $74m in Ryman Healthcare, and private equity funds. The iwi sold its 67 per cent stake in Go Bus. It owns Oha Honey, which made big losses and has recently made joint venture investments in Ōwhaoko Honey and Central Plateau Honey.
Waikato-Tainui
Owner of half of Hamilton's The Base shopping centre and Waikato University, this iwi's largest asset class is property, comprising 51 per cent, followed by 18 per cent in financial assets, 14 per cent cash and 7 per cent in hotels. Covid pushed down revaluations of assets, including a $20m loss on investment properties.
Ngāti Whātua Ōrākei
Assets are almost entirely in property: 29 Quay Park ground leases include land under Auckland's Spark Arena, Countdown, apartments, offices, banks, hotels and medical facilities. There is also 28ha of North Shore land where it has begun developing terrace-style houses. Property rental revenue increased from $42m in 2019 to $45m in 2020 and consulting revenue rose from $2.2m to $3.5m.
For the first time, the Hawke's Bay's Ngāti Pāhauwera appeared in the annual report, with total assets of $93m.