41
pay) are centred on zero.
38
This can
also be seen in the descriptive data,
with employment rates for the groups
of workers more likely to earn the
minimum wage (such as those with
low qualifications) are similar to their
historic levels.
39
The literature gives a number of
explanations. One is that employers
have more wage bargaining power than
workers, which means that absent
a minimum wage workers’ pay is low
relative to the value they produce –
the minimum wage is eating into this
downward pressure. Another is that
minimum wages ‘pay for themselves’,
either by lowering other employment
costs (such as by reducing worker
turnover and hiring costs), or by raising
productivity (including by inducing
more effort from workers). At the level
of the whole economy, evidence from
Germany has also found that the
minimum wage can have a positive
effect on productivity by pushing the
reallocation of workers away from
smaller less productive firms, and
towards larger and more productive
firms and sectors.
40
It is also possible to avoid
disemployment effects if employers
adjust to higher wage costs through
other channels, and there is indeed
evidence of employers raising
prices and accepting lower profits in
38 A Dube, Impacts of minimum wages: review of the international evidence, November 2019.
39 Low Pay Commission, Low Pay Commission Report 2022, January 2023.
40 C Dustmann et al., Reallocation Effects of the Minimum Wage, 2020.
41 Cribb et al, The impact of the National Living Wage on wages, employment and household incomes, December 2021.
response to higher minimum wages.
The particular margin of adjustment
will depend on the market a company
operates in (firms in tradeable sectors
are less likely to be able to raise prices
in response to minimum wage hikes)
and how easy it is for the firm to change
its production processes (i.e. to use
more capital and less labour).
All of the above being said, most
economists would agree that at some
point minimum wages are likely to
have a negative effect on employment.
And this becomes more likely as the
minimum wage rises – empirical studies
can of course only tell us about the
impacts of past (lower) minimum wage
levels, and leave the impact of higher
minimum wage levels uncertain. And it’s
notable that the most recent significant
study of employment effects in the
UK – a 2021 study by the Institute of
Fiscal Studies, which looked at the
years following the introduction of the
National Living Wage – did identify
a negative employment effect, with
a central estimate of an own wage
elasticity of -0.17.
41
The Economy 2030 Inquiry | Low Pay Britain 2023
economy2030.resolutionfoundation.org