It could but it won't. Same as economic support for the Celtic fringes. Wales, Scotland and Northern Ireland are not going to see the same level of investment from Whitehall that they have from Brussels. When Margaret Thatcher took aim at the trade unions and in one full swoop killed off various b British industries, she made no British attempt to fix the problem. It took EU money and EU programs to setup enterprise zones in the Celtic fringes. UK governments have long ignored the needs of the country outside the south east.
Same as investment in the NHS, which although not funded by the EU has badly needed structured investment for decades. Never happens. Successive governments just blame their predecessors or bad management and on this the cycle.
The EU also funds, e.g., nursing education programmes at ex-polys that aren't likely to survive a post-Brexit funding winter. NHS staffing isn't quite so critical -- NHS is highly reliant on immigration from the Commonwealth more than the EU -- but it still would pose a concern.
Uk is a net payer for an abysmal percentage of its GDP.
Objectively earns much more from the European Community than the breadcrumbs that spends every year to be a member.
It can replace EU subsidies only if the economy and the government income stays the same.
And everything as for now is pointing to the opposite.
A lot of high paying jobs (and very highly taxed) in banking are moving in Europe, a lot of businesses in the uncertainty are slashing investments, house market together with consumer spending is plummeting.
Only a blind person can't see that next year there will be far less money in the government disposal.
And, guess what, I don't really think that their first priority would be to reinstate all the subsidies coming from the EU.
Irrelevant really, as cross-EU collaborations have been hugely important to UK-based research. Additionally, we're a net beneficiary of EU research funding.
My parents are in a heating fuel-oil buyers club. They pay £5 pa and save themselves hundreds through group negotiation of the price (and reduced delivery costs for the companies).
If they leave they have £5 more money in their pocket! They should leave right, rather than wasting that £5??
The NHS is currently underfunded, to the extent that Darzi walk in centres are closing and some important targets are going to be loosened because trusts have no hope of reaching those targets.