This thread is so funny. Always liked seeing ignorant whiners and their excuses about why X and Y doesn't work. If you want advice about investing in a place listen to what somebody who was successful at it says not what whining looser say.
The main mentality of the Romanian citizen is this "Romania sucks, Romanian politicians suck. It is the Romanian's politician's job to make my life easy, preferably even wipe my ass and sing me a bed time song.". Most Romanians will complain about everything from the country, politicians all the way to the rest of the people in Romania. They will tell you nothing works here and it is not a good place to invest, because they never even tried. They are whining loosers and try to somehow argument to themselves why they are loosers. Their argument is that the universe (in this case Romania) is in their way.
There are lots of things you can do in Romania or any other country for that matter that will make you successful. You just have to pick something that has a high chance to work in that place and DO IT.
I don't think government bonds or stocks are best way to invest in Romania. A hands off investment like that is easy but not the best. Invest in whatever the strengths are. In Romania possibly the best resource for a foreigner are the people. Workforce here is very cheap compared to the West and they are also pretty skilled. Obviously most people aren't great but you can find great talent here. Largest percentage of Microsoft employees are Romanian. One of the big shots at Facebook is Romanian (the CTO or something like that). If you look on vWorker.com at the stats, Romania has most coders/workers there after India. Considering the difference in size between Romania and India you realize how huge the number of Romanian specialists in IT is. And trust me, IT is an area where Romanians shine. All big companies came here for the workforce or use Romanians to get the job done in their country.
Just to give you an idea, a friend of mine is a Python developer at a Romanian company in Bucharest. His salary is $1000 EUR/month. He got a project for a intranet website. He and another colleague of his finished the project in 2 weeks. That means $1000 salary cost for the Romanian company. For this 2 week project the company received $180,000 EUR from the client. The client was a French company who outsourced to the Romanian company. The French company made $240,000 EUR from their client - the French government. So, ignoring all additional costs, a $240,000EUR project cost was $1000EUR. I think we can all see a chance for profit right there.
From personal experience I can tell you that Romanians are by far better workers than Indians and folks from Philippines. I mean no disrespect to folks from India or Philippines but I have considered over 50 Indian workers and over 100 workers from Philippines and I maybe found 2 or 3 that were decent but not too great. From 5 Romanians that I considered, I hired 2. One is doing a good job the other is exceptional. It is not just a matter of skills, it is also a matter of mentality. While this is certainly not the rule, if you interview a Romanian for a long term job position (maybe full time) he will tell you himself that he isn't sure if he's good at what you need if that is the case. Also, if he gets the job he can be pretty hard working. This is not the rule and most will not be like this, but a surprisingly high number of them are like this. Also, they have a mentality much closer to the western one compared to the Indians and Filipinos for example so you will be able to relate with each other easier.
Corruption is everywhere, and that is a good thing if you're a business. From an economic standpoint, if corruption is predictable and stable it becomes in your company's accounting another fixed cost. It's like an extra tax you pay. You know about it, there are no surprises about it, it can be easily managed. Even better, in Romania corruption allows you do do things that otherwise if everything would be 100% legal and right, you would have no chance of ever doing. So instead of complaining about corruption, use it to your advantage like a real business man.
Corruption is everywhere and that means the small things cost you extra. You have a medical insurance, but if you actually want the doctor to not make you wait 6 hours in line and actually help you, you better give him something. Need paperwork done? Better give something to the clerk. On the good side, if police pulls you over for speeding and you're not drunk, nor have you got yourself into an accident already, you give him something and he lets you go. Have a few million USD to invest here but the law does not allow you to build that building where you want? Bribe the mayor or somebody in the local administrative system and he will snap his fingers and get you the papers you need. Hell, if you pay enough they might even adapt a few local laws for you (the kind that are made by the authorities of that city, not nation specific laws - those would cost a lot more, but again I am sure it is still doable since it is doable even in USA, UK, France, etc. if you pay the right price).
The country is beautiful. Landscape is great, people like to party, girls are hot, night life is ok (not the best you can find in this world but pretty good). To have a great time, make friends from people who love life and are not whiners. As I already said, many Romanians are whiners and like to whine and find excuses for having a shitty life. However you can still find those who understand that it is their problem to have a great life not someone's else and like to live their life and not whine about it. Those will be fun to be around.
Internet is beyond good. For $10/mo you get 100mbps REAL throughput with Romania, 20-80mbps with the rest of the Europe that is connected to Frankfurt, Germany Node and about 5-10mbps with USA and other regions. As a company you have to pay more, just because you're a company (something like $50/mo or so). They differentiate plans between commercial and residential. There are several providers but go with RCS-RDS they are the best and the cheapest considering what you get.
Women... as for the entire Central and East Europe, they are hot. Obviously you find lots of not so hot ones (majority), but the hot ones are so many that you really have where to pick from. During summer for some reason I see just hot ones. Maybe it's because the hot ones are so hot in miniskirts that I never get the time to notice others that are not hot. In the city I am in, there's a park downtown where people have a walk, drink a cold beer on a terrace, etc. During summer, if you just sit on a bench, in a 10minute time span you will see more than 3 super hot girls and over 20 hot ones.
If you come here focused to win and start a successful business, that is what you will do. Not because it's Romania, but because that's what you ill make the dream become. It is a good place to invest because it is a developing country, but make sure you do your homework before you dive in. Also, I would recommend just coming here on holliday to see how you find the place. That will allow you to prospect things and learn more hands-on while you're having fun.
My best wishes and good luck
PS: keep away from pessimists that only see the bad things in everything