The median wage in the annual June income survey was $20.86 an hour, lower than the average wage of $25.07 in the same survey because a few people on very high wages pulled up the average.
An alternative measure, the quarterly employment survey, found an even higher average of $27 an hour because it surveys employers rather than workers, excludes farming and fishing, and does not count extra hours that employees worked but were not paid for.
The Government is required by law to review minimum wages by December 31 each year to kick in the following April. Last year 32 groups made submissions.
The 20 previous factors used to set the minimum included social factors such as fairness, protection, income distribution, the gender pay gap, and impacts on women, migrants, Maori, Pacific people, part-time workers, temporary workers, people with disabilities and young people.
Consultation has been cut back to just the Council of Trade Unions and Business NZ, which were asked on November 22 to make submissions by November 30.
The simplified process will now be followed in three years in every four. The Cabinet paper promises a "comprehensive review that considers a wide range of other factors and consults more widely" in 2015 and in every fourth year after that.
Wage options
Hourly wages, June 2012
$27.00
average earnings, Quarterly Employment Survey
$25.07
average wage/salary, Income Survey
$20.86
median wage/salary, Income Survey
$13.50
minimum wage
Minimum wage options
$13.61 (+0.8 per cent)
consumer prices
$13.66 (+1.2 per cent)
average pay, Income Survey
$13.76 (+1.9 per cent)
labour cost index
$13.82 (+2.4 per cent)
median pay, Income Survey
$13.86 (+2.7 per cent)
average earnings, Quarterly Employment Survey.
Source: Statistics NZ