Lse vs mit

There isn't a joint economics and finance course at LSE. You can do finance, or you can do economics. You could do either of them combine with maths, but not together.
LSE is certainly world renowned for economics, and is pretty well known in the "finance world" in general. How far that translates into experience on the course from teaching etc though, I can't say.
The big question is, will LSE be that much cheaper than MIT though? Assuming he's an international student, when you factor in international fees and living costs in London (which are extreme), LSE is also very expensive.

I have no problems with financing
I mean the London School of Economics, the same prestigious as MIT
I know MIT is strong in engineering
and LSE in Social Sciences and Economics
I'm not interested in geometry
Because my interest is in economics, I wanted to study at the London School of Economics
I just wanted to know whether LSE is on par with MIT in stature, specializations, and level of academic rigor.
+ My friend, there is a program at the London School of Economics for a Bachelor of Science in Economics and Finance
Who told you it doesn't exist?

Prestige is mostly meaningless, except for things like investment banking or management consulting - LSE is well represented in that sphere.
Not sure what you're talking about in terms of geometry...?
Also there is no joint honours in economics and finance at LSE: https://www.lse.ac.uk/Programmes/Search-Courses?studyType=b6732bf8-36e3-4461-b325-c925ad870cb4&term=economics
Are you talking about the University of London international programme economics and finance degree, which is (allegedly) developed in consultation with LSE academics? Because that is not an LSE degree and will not hold the same weight in the fields where a "prestigious" degree is necessary.

I will start studying at the London School of Economics, specializing in economics only next year
But I have an Egyptian friend who was coming to Britain as a tourist
He told me that he would begin his studies at the London School of Economics in Egypt, specializing in economics and finance
I did him how
He told me that there is a branch of the University of London in Egypt called the European Universities EUE in Egypt
He told me that they were studying the same London School of Economics programmes
The degree will be the parent branch of the University of London in Britain, with academic guidance from the London School of Economics
So I was asking about that
Because I was surprised

The University of London international programmes are not the same as the LSE programmes and are not taught or awarded by LSE. There is no "LSE in Egypt", there's the University of London international programmes which have some delivered locally in other countries.
It's a scheme cooked up by the University of London (which is the overarching body which includes the individual federated awarding institutions like LSE, UCL, QMUL etc) which is essentially a cash cow for them by getting international students to pay big fees for a course that is vaguely affiliated with those much better known institutions, which applicants take on because they hope it will somehow be recognised as the same as a degree from one of the federated awarding institutions. However it's pretty well recognised that it's not the same and is a separate programme entirely and weighed on its own merits (which are very different from e.g. a course at LSE itself).
I would caution against pursuing that programme on the assumption it is an LSE degree or recognised as one. If the individual is pursuing it on its own merits then that's fine, but doing so because they think it's an LSE degree is going to lead to disappointment.

Really it's a disaster
They laugh at the students that their degree will be from the London School of Economics
I have to explain it to him
Why do they do this and do not explain it?
Even on their website they write that you will become part of their alumni network

I mean, the alumni "network" for University of London graduates does technically include all LSE grads, as well as all QMUL and all other UL federated institution graduates. It's unlikely to really make much difference in any event though, unless they actually meet some of these alumni at networking events during the degree.
As to why they do it, this is the same as why they don't explain it - they do it for money, and it works because people don't understand the difference. Sad but true. If your friend has the grades for LSE and can pay the international fees they should just apply directly to LSE to study at LSE (in London that is).

Yes, I will tell him that. I think he is showing great disappointment
This is a disaster that must be made clear to students