The Trudeau government tabled a budget Tuesday that will use billions of dollars worth of fresh fiscal runway for new investments, a decision that leaves Ottawa with no timetable for balanced books anywhere on its horizon.

Finance Minister Bill Morneau‘s budget will channel the extra dollars into new spending that he’s banking on to lift Canada’s long-term growth.

READ MORE: Trudeau government reveals the 2018 federal budget

In releasing his third fiscal plan, Morneau sought to reassure Canadians the new spending would be carried out in a responsible way, while arguing his earlier investments had already produced encouraging economic results.

“The economy is doing well – remarkably well,” Morneau said in prepared remarks of his budget speech.

“With a strong and growing economy in place, we believe that now is the right time to focus on the deeper challenges that hold our economy – and our people – back.”

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WATCH: The importance of debt-to-GDP ratio

2:27 Federal Budget 2018: The importance of debt-to-GDP ratio Federal Budget 2018: The importance of debt-to-GDP ratio

Compared to the fall, the government has $19.8 billion in additional cash to play with over the next six years – an average of $3.3 billion per year in extra fiscal elbow room.

That money was generated by a number of sources, including the stronger economy, revenues from tax changes for private corporations, lower-than-expected departmental spending and re-profiled infrastructure commitments.

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But due to the new investments, the government will continue posting annual deficits.

Morneau plan to raise long-term growth is counting on waves of new measures designed to advance fundamental science, nurture the innovative economy and to knock down many of the barriers preventing women from fully participating in the workforce.

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WATCH: The biggest takeaways for Canadian businesses from the federal budget



2:53 Federal Budget 2018: The biggest takeaways for Canadian businesses Federal Budget 2018: The biggest takeaways for Canadian businesses

Indeed, one of the predominant themes of the budget is increasing the workforce participation of women, which many say will bring big economic benefits for Canada.

But it remains to be seen whether the additional investments will be enough to give future generations the economic boost the Liberals have vowed to deliver.

Some say Ottawa has spent too much because the government may have to eventually address another economic downturn or any potential fallout from the trade and competitiveness uncertainty connected to the United States.

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Others argue Morneau should be spending far more if he truly wants to increase Canadian growth. For example, some said the budget’s lack of a comprehensive child-care plan means Ottawa hasn’t gone far enough to ensure the economy reaps the benefits of boosting female participation in the workforce.

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The government is projecting deficits roughly in line with its October projections. The new outlook now shows an $18.1-billion shortfall for 2018-19 that’s expected to gradually shrink to $12.3 billion in 2022-23, including annual $3-billion cushions to offset risks.

WATCH: The biggest takeaways for everyday Canadians from federal budget



1:44 Federal budget 2018: The biggest takeaways for everyday Canadians Federal budget 2018: The biggest takeaways for everyday Canadians

During the 2015 campaign, the Liberals had pledged to keep annual deficits at no more than $10 billion and to balance the books by 2019.

On Tuesday, Morneau reiterated that he’s instead focused on another fiscal “anchor” of lowering the net debt-to-GDP ratio – a measure of Ottawa’s debt burden – each year. The budget predicts the ratio to decline each year over the outlook.

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The lack of a zero will draw criticism, particularly from the opposition Conservatives. There are concerns over Ottawa’s deficit-spending plan at a time of economic expansion and warnings it could find itself far deeper down the deficit hole in the event of a recession.

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Other major worries are linked to the unknowns surrounding the outcome of the renegotiation of the North American Free Trade Agreement and the potentially greater fallout from the U.S. plan to slash corporate tax changes.

WATCH: Trudeau, Morneau show off 2018 budget in House foyer

0:32 Federal Budget 2018: Trudeau, Morneau show off budget in House foyer Federal Budget 2018: Trudeau, Morneau show off budget in House foyer

There have been repeated calls on Morneau to respond by cutting business taxes in Canada – but he has refused to act until the U.S. government irons out the details of its tax overhaul. The budget acknowledged the uncertainty and said more analysis was necessary.

The government will do its homework on the U.S. tax plan before taking any steps to address it – to make sure Canada gets it right, Morneau told a news conference before the budget was introduced.

“It’s not news to me that business is asking for lower tax rates – I was in business, that’s a pretty common refrain,” Morneau said. Tweet This

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“We have an extremely positive situation in our economy right now… Being in a very strong economic position make us resilient to deal with challenges around the world.”

Jean-Francois Perrault, chief economist for Scotiabank, said the government’s plans to focus new spending in the budget on important, long-term goals to address inequality also raise the question of whether it still has room to navigate rough economic waters in the future.

He said the long-term plans in the budget should have a positive economic impact, but it remains to seen by how much.

“If you do things that reduce inequality, depending on how you do them, there is a growth payoff,” Perrault said.

WATCH: Government making gender equality a focus in new budget

2:07 Federal Budget 2018: Government making gender equality a focus Federal Budget 2018: Government making gender equality a focus

For example, he said the budget introduces lots of smaller steps towards raising workforce participation among women. However, it lacks a broader child-care plan, he said – for Perreault, the single most important measure that encourages women to enter the workforce.

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Economist Armine Yalnizyan agreed that the budget lacks the “secret sauce” of child care.

She said in other jurisdictions government-subsidized child care has proven it pays for itself by enabling more women to enter the workforce, thus raising revenues.

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Yalnizyan also argues that in its effort to keep the debt-to-GDP on a downward track, the Liberals are actually spending less over the outlook when the promised investments are compared to revenues. To explain it, she noted how the government moved forward nearly $5 billion in past infrastructure commitments to the next two years.

She said as long as there’s no unexpected downturn, the government appears to keeping its fiscal powder dry this year, so it can put more into the 2019 budget – which will be tabled months before the next election.

“But that does not square with their focus on saying we need to plan for the long-run growth of the economy,” Yalnizyan said.