Say once the game is ended you are given jurisdiction over the New Vegas area and are in charge of policy and so forth. What would you do?

There are a number of initiatives I'd create:

1. Containment and Eradication squads: these would be top hunters/rangers employed to ensure that 'pest' hotspots firstly don't continue to grow and slowly, over a period of several years, would kill them off until any infestations of Deathclaws, Cazadores or other such creatures are gone or at least contained.
2. Prospector and scavenger teams: these people would be employed to help find scrap material useful to the NCR and New Vegas in any shape or form.

I would improve the slums around Freeside by creating some industry to employ people in that would also help the Mojave as a whole, one example would be to create a textiles factory as clothing is a necessity and many wastelanders seem to be lacking in that. I would also continue relations with the King to either accept NCR rule but allow the gang to still exist or incorporate him into the NCR and be put in charge.

The Strip itself seems to be draining the NCR of much funding so I would open the Lucky 38 (now that House is gone) as an NCR-owned casino and heavily tax any other ones. All soldiers employed by the NCR are allowed to gamble but there will be limits to how much they can gamble away.

I would create more peace across the Mojave by placing one NCR ranger or high level officer in each town to act as a sheriff, even if they don't want NCR rule (the sheriff can just help out). I would also create a radio system for every town so they can communicate and get help quicker.

Jacobstown would be protected and promoted as a refuge for Super Mutants; however, to prevent them becoming isolated and aid in integration I will encourage them to venture out into the wasteland more for good aid (as troops namely).

I would establish bases on the Western side of the dam just to protect from any potential move from the Legion and push the frontline slightly forward.

The Followers of the Apocalypse would get some further funding to help them and hopefully expand their size.

Finally, to improve trade routes I would start an initiative to repair or create roads all across the Mojave so carts, possibly cars and other transport can begin to exist.

Probably 100m mwahahahahahahahahaahhahahaha :rofl:

I would:

extend the New Vegas walls around both Freeside and Westside. Have securitrons patrolling the top of the wall, and guarding the gates. Internal Law I would hand over to the Kings. Medicine and teaching would be the Followers. Maybe have a council made up of a representative of each of the tribes. Get the Brotherhood patroling the highways between Helious and the Dam. Crimson Caravan and Gunrunners can keep trading as long as they behave.

NCR army and Legion are NOT welcome.

I wouldn't want to run it.
Have no interest what so ever in politics or sitting behind a desk pushing people around.
Either it's Legion or you can find me on top of Cass, between Veronica or in Lily's lap.

If we take a hypothetical me that for some mad reason would actually "want" to rule over people I guess I'd take in slaves and force them to work on the city to fully repair it including building a [censored] wall around it that is actually secure and not build out of hap hazardly thrown together junk.
After that I'd sell them off to the population to help work on farms, mines and as pack mules.
The people would be governed with a rule of fear, you act nice, or you're punished.
That simple.
You steal something? You get your hands cut off.
You kill, sell six, force six upon someone, and you die.
You get into a fight? Then you and the other figher will have your legs crippled.
I'd make damn sure that the people that serve me, the guards, would be loyal to me but at the same time not abuse their power over the citizens.
And that the citizens make sure to follow the rules. Those who act well will be left alone and those that act bad are punished or eradicated.
I'd make it clear that all mutants and humans are to be treated equally and any form of discrimination is rewarded with a HEAVY fine or enslavement.
I'd keep Goodsprings and that NCR farm place active to be self sustained.
I'd keep out any and all opposition by keeping scouts on the borders of my lands with several explosive charges at all roads entering it.
Any gang or army coming in that I don't want here then I give the go signal to blow up the unsuspecting opposition.

And finally, I'd keep trade relations with the NCR until Legion finally comes and takes over the land again. (Third times a charm.)

Well, I'd do "something" along these lines. But I'm not so interested in ruling a land.

How would I run New Vegas.

I would Eliminate the Fiends, and the other raider groups.
I would negotiate a deal with the Khans they can stay in the Red Rock Canyon as long as they don't cause trouble and sell their Chems to legit businesses.
Crimson Caravan can stay but I would tax the hell out of them. The Van Graff's aren't welcome.
The NCR citizens would be welcomed but not the soldiers and certainly I wouldn't allow an NCR Citizen to carry a gun into the Strip area.
I would build up Freeside and make it outer New Vegas. You would be able to live there and not worry about gang attacks.
I would eliminate the Kings or tell them to drop their flags.
The FOTA can stay in the Mormon fort and I would encourage them to build a bigger medical center for the area.
I would upgrade a certain number of Securitrons to MKIII and have those units go hunt the Deathclaws, rogue Super Mutants, Brotherhood Of Steel members, Legion Members, etc.
The Gun Runners can stay and I would give them certain benefits so that they can expand their business in the area.
Have all the casinos be like Gomorroah but run them as a legit business kinda like a Brothel Casino. :drool:
Expand the power of the Hoover Dam for New Vegas. I would use 80% and who ever wants to pay me can use the other 20 as long as they aren't bad or slavers.
Have a more expanded version of the New Vegas Treaty with the NCR.
I would negotiate a treaty with the Boomers. They can stay at Nellis as long as they don't shoot rockets at any body.
Have Trade agreements with Jacobstown although I would tell Marcus to deal with the Nightkin or I'll send the MKIII's after them.

I've had some more ideas since which I'll add:

I'd program the securitons (upgraded) to work for the NCR and they would patrol up and down highways to ensure there was at least some protection along these routes.

Nipton can't remain a ghost-town but I doubt anyone would want it to be returned to a normal place after the massacre. So I would change it into a library/museum/university place that can provide education for anyone passing by. This would increase tourism and be good generally for the intellect of the populace as a whole.

I would also hand out workbooks to children so that they can get some kind of basic education which seems lacking in the wasteland.

IF IF Yes man would have let me back NCR with House s MKII Securitrons instead of becoming my boss. I would have told NCR that if they wanted to annex NV they would have to go finish CL once and for all. I would have sent House s securitrons too.

I also would have went, because my uber god can crush some Legion scum.

After every man, woman, dog, from cl was wiped out I would turn it all over to NCR except the Lucky 38 and Houses securitrons.

Then if NCR got dumb I could punish them with some robots.