From my point of view, while it is true that the income gap may stimulate the social development to some extent, it causes trouble as well.

在我看来，虽然收入差距确实在一定程度上刺激了社会发展，但它也带来了很多问题。

youdao

Raising the minimum wage is identified as a key way to address the income gap.

提高最低工资被认为是解决收入差距的一个关键途径。

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The income gap has become a reason for this activity.

收入上的差异是这种活动的原因。

youdao

He says the government is working to solve issues such as the income gap and poor housing.

VOA: standard.2010.03.24

But he voiced concern about the income gap between rich and poor in Russia.

BBC: Russian opposition MPs snub Putin with walkout

The income gap between men and women has narrowed over the last two decades.

FORBES: Connect

The existence of hidden income has expanded the income gap remarkably, in our opinion.

FORBES: The Chinese Have $1.5 Trillion In Hidden Income