"The business returns are six times greater than a residential property, so are the risks six times greater? Absolutely not.
"[There] are many professional business advisors out there - be it accountants, lawyers, family members - who can help people navigate business ownership and the earlier you get into it, the better you get."
He said there were different requirements for taking out a business loan due to the elevated risks compared with residential property, such as a 50 percent deposit, having a business plan and a general security agreement - which is like a mortgage.
Such requirements did not necessarily mean business ownership was only available to a few, he said.
"The average house price in Auckland is a million dollars, so that then means if you want to borrow 80 per cent from the bank you're going to need $200,000, the average business price is $650,000, so 50 per cent of that is approximately $300,000, so you're not miles away."
Steering money away from houses towards productive investments would be better for the New Zealand economy, he said.
Slower SME sales
The data also found fewer small businesses were sold this year compared with last, despite stronger demand and higher prices.
Sales for the year to October were down by nearly 12 per cent on a year ago to 323.
However, the average price for an SME rose by 4 per cent to $653,000 and internet traffic on ABC's website is up 20 per cent to about 20,644 thousand visitors per month.
Small put the fall in listings down to misconceptions by business owners about the strength of the market.