The phrase "a broader boost" is correct and usable in written English.
It can be used when discussing an increase or improvement that is more extensive or comprehensive in nature.
Example: "The new policy is expected to provide a broader boost to the economy, benefiting various sectors."
Alternatives: "a wider enhancement" or "a more extensive increase".
It predicts that unconventional energy, as well as providing jobs in its own right, will be supporting 400,000 jobs in manufacturing in 2015 and 500,000 jobs, or 4.2% of total manufacturing employment, in 2025.The spending-power of those new workers, and the cut in businesses' and households' energy bills, should provide a broad boost to the economy.
This was part of a broader energy plan meant to boost conservation, improve energy security and move toward reliance on renewable sources of electricity.
It suggested activity was boosted by a broader range of tax allowances and a sustained high oil price.
Under her leadership, the State Department worked closely with energy companies to spread fracking around the globe part of a broader push to fight climate change, boost global energy supply, and undercut the power of adversaries such as Russia that use their energy resources as a cudgel.
His message was tailor-made to those who are already inclined to support him, a narrowing slice of the older, white, non-college-educated electorate, rather than a broader swath of voters needed to boost his standing.
Their reforms are part of a broad agenda of boosting competitiveness.
The CBI said the improvements in Europe together with a broader global recovery would give a positive boost to exports.
She should create a broader European Transformation Fund, to encourage privatisation and boost public and private investment in southern Europe.
Separately Thursday, rival Darden Restaurants, which operates Olive Garden and Red Lobster chains, forecast 2008 earnings above Wall Street expectations, which also helped boost a broad rally in casual-dining company stocks.
