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'Work sharing systems could [ increase the profit of / strengthen ] temporary staff agencies,
because there will be a greater demand for temporary employees.'

I guess 'increase the benefit of --' can be used in this context.
'Increase the profit of --' is, however, not so punchy and seems to lack a strong impact.
Can I use 'strengthen' in this context?
Or is there any good word for this context?
Thank you in advance.
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'(Give a) boost (to)'?

'Give a shot in the arm to'?

MrP
Comments  
Students: Are you brave enough to let our tutors analyse your pronunciation?
MrPedantic, thank you for your reply.
Both 'give a boost to' and 'give a shot in the arm to' didn't pop to my mind,
so your advice helped me a lot. Thanks million!
You're welcome, Anon!

MrP