I'm going to pull your post apart, and hopefully not twist your intentions:
No EU funding to do that now... there was a good amount of EU funding that came in for development of new industrial centres, especially when looking at the redevelopment of former heavy industrial areas.
No access to collaborative EU research projects for universities, suspect it'll be harder to access things like CERN and the ESA.
Less international engagement as the advantage of engaging with an EU university or research body has disappeared.
Investment will come if there is a competitive advantage; the reason that things have moved overseas is that:
1) Labour is cheaper
2) Incentives have been made available through taxes and inducements, especially in the EU and developing countries.
Now, this presents an interesting problem... the EU bogie man that everyone bemoans is actually one of the ways that this playing field could be levelled. The Euro removes the currency fluctuation - there is less advantage in government policy changes in terms of the currency fluctuations - and the main thing that needs to be implemented is the equivalent tax structure across the Euro zone; this has been done in part with the equal application of VAT across the EU states, but the next stage is the same level of taxes at all levels. The final stage is then the equalisation of wages - ie everyone has the same wages. This would remove the competitive advantage of places like the Czech Republic, Poland etc where wages are lower than the Western member countries.
So, from that, for the UK to attract industry back, they need to have something that is appealing... lower tax rates? See my next part... Lower wages? How low would you go to attract industry? 50% less than you are on now? 75% less than you are on now? That would put the UK approaching level with China...
Trade deals are also part of that attraction, and not having a trade deal with the EU other than WTO is not going to be appealing for anyone - that's no better than many other countries, and in some cases worse. Without that the UK will not be competitive in the international space.
There has been no incentive for investment in apprentices, because it has been cheaper to have international migration that allows skilled migration. The pay thing comes back to that competitive advantage; the destruction of trade unions has had some part in that.
If we are having investment in science and technology, the relationship with university becomes quite interesting; the transfer of the learnt knowledge at university, based on the research that is undertaken there is one of the drivers for regional growth; without that knowledge transfer, and a reliance on "dropped in" technology businesses, the economy stagnates and does not grow or develop supporting industries that further develop the economy in the area; this is one of the reasons why South Wales struggled as it had industries dropped in, but no supporting education to build new knowledge based economies.
They need to be paid from somewhere, and local government don't have the budgets to do that. Someone's got to pay for it, and there just isn't the tax income to do it because the economy has become so global - the purchasing of things from the ilk of Amazon and eBay means that the revenue (and associated taxes) flow off shore via tax havens. Stop buying things via those avenues, buy things locally and the money will go round the economy a bit more and make a difference in the local area.
Yep, it seems like it's going to self-level like a bucket of sh!t... just before it tips over you.
In 2017 the UK paid the EU £13billion. We received from the EU as funding £4billion, so clearly if we don't have to pay the EU, we will have more to fund our own projects. We do not need the EU to fund us.
Science and R&D are already international. My mate, who is a nuclear physicist has worked extensively in the EU, but also in America and Australia. If you have the skills, they will want you.
The majority of university funding through overseas students comes from outside the EU, the UK is still seen as a very desirable place to get an education.
VAT is not applied equally across EU states, it ranges from 17% in Luxembourg to27% in Hungary.
The notion of a single fiscal or monetary policy for countries with vastly differing economies is nonsense, as proved by the massive financial crash in Ireland (much worse than other EU states). They knew their economy was over heating but were powerless to control it because of being locked into the same currency system as the rest of the EU who weren't doing too well at the time.
If you equalise wages you will generate massive inflationary pressure, it would be economic madness and that suggestion defies all the basic rules of economics.
There is a massive skills shortage in the Trades because successive Governments have tried to persuade people that a university education is the only education thats worth having. It used to be that only the top 2% went to university, now the majority do, to the extent that a 1st degree isn't worth toilet paper now and jobs like paramedic and Nurse have been turned into degrees which are an entirely unsuitable method of training for a profession such as those.
In pursuance of the above, funding for the trades was all but scrapped.
That skills shortage has not been met by immigration and we need to see a serious rethinking of post school training in this country.
The benefits culture is an economic timebomb. I'm going to make statements here which are generalisations that some may not like, but it's the reality. We have a benefits culture in this country, a whole substrata of society that will spend their entire life on the dole, who don't want to work and don't intend to work, those scrotes, for want of a better term, then usually have multiple scrote kids, who will grow up believing that scrounging on benefits is a legitimate lifestyle choice. They will then go on to have multiple x multiple scrote kids and so the pool of scrotes gets bigger and bigger, and very quickly, possibly within 3-4 generations, we are right in the shit, because there isn't enough money being generated to carry on paying the scrotes.
Like I said, it's an economic time bomb, that no one wants to talk about because of bullshit political sensitivity.
It's worth noting by the way that three of the main players in the EU, Germany, France and the UK, also have some of the worst economic growth in the world, with the UK being right down towards the bottom. Of EU countries only Belgium, Italy and Greece are below us.