*Spits out coffee*
Wot. A lot going on there.
First off, not a colony, m8. Democratically-voted-in-member-of-the-UK-with-representation-in-parliament-and-a-devolved-government here (well, devolved government if it chooses to sit). It's not an occupation. To quote myself last time it was implied I was an occupier:
Lol, the occupation. My family has owned the same land for four hundred years. Our name is on maps of ownership older than America. At what point will you stop calling me an 'occupier' and start calling me a native?
This should make it clear that it's the relationship with the UK, and not any inherent poverty of the NI region that's to blame here.
That is a hugely sweeping statement and I'd like to see your in-depth justification for it. Firstly, before partition all of Ireland was under British rule. Unless you're implying that Northern Ireland's development of devolved government and greater political rights in the U.K. is proportionally linked to economic calamity, Ireland has been under varying degrees of British rule since the late twelfth century when Henry II came over and said 'mine'. It's fun to read about, actually. The Irish monks were so happy they tried to get the pope to forgive him for the whole Becket misunderstanding.
But I digress.
I'm sure you'll want to expand on what 'maintain control' means? Police costs? I'm having trouble thinking what costs so much that it has humbled an obviously otherwise booming economy.
Though I'm no economist, I'll give my spin on Northern Ireland's shoddy economy. Northern Ireland was a world-leading ship-building area, which explains why Belfast and Northern Ireland were so seemingly disproportionately valuable. When partition happened in 1921, Northern Ireland was worth a pretty penny or two. As with every boom, though, there must be a bust. When the Wallstreet crash occurred in 1929, many jobs were lost and businesses began to shut down. The largest companies survived (albeit at great cost) and continued on. World War Two began in 1933, and in 1941 key shipyards were blitzed by the Germans. Following the war, production gradually fell and unemployment skyrocketed. Against all this was the constant thrum of dissident action which discouraged investment, destroyed infrastructure and was Generally Bad. This has only recently tapered off with the Good Friday Agreement in 1998. While ships are no longer produced in Belfast for the aforementioned reasons, nevertheless with a ceasefire Northern Ireland has begun to diversify. Tourism and trade has increased, and the economy is slowly beginning to improve. Investment in new businesses is encouraged by the Council, so on so forth.
Apologies if there's any snark in there, it's half three and I've been writing my dissertation all day. Don't call it snark, call it borderline insanity.