After an interesting post-RA informal discussion at the Biergarten, some issues were raised regarding my own suggestion, and in all due fairness, I think they should be brought up and discussed openly.
One of the issues that Pelanor raised is that we should focus on attracting business, and not increasing the hurdles for new businesses to establish themselves in Neualtenburg.
Thinking about this a bit, I can imagine that someone with L$20,000 to invest would certainly not be very happy to know they should now deposit L$10,000 in escrow, and just invest half of it, while outside Neualtenburg they had the full L$20k to invest. Even if the Neualtenburger Bank would say: "oh, you have a good reputation; here is a loan of L$7,500 on top of your L$10,000" it's a question of principle — making business outside of Neualtenburg would still be seen as more attractive.
So, despite my earlier comments, I'd suggest that "holding stock in escrow" should be an
optional alternative for businesses that don't mind having
unlimited liability.
What this means is that the
customer has now more choices. The City of Neualtenburg presents the customers with several options of established merchants in the City. Some are unlimited liability companies: the City does not give any guarantees on them; deal with them at your own risk; the best the City can do to minimize fraud — and I
always assume that a guilty party will flee Neualtenburg and very likely SL (returning eventually under an alt) — is to seize assets (likely only land and buildings...) and compensate defrauded parties with the results of the sale of those assets. But that is not much compensation.
The City will also, however, give customers the choice of dealing with limited liability companies. These will have their Incorporation Charter duly notarized, and a copy will be available — you'll know who they are, who runs their company, and what their stock is. You'll also know how much money/land/assets are hold in escrow for that particular company. And finally, you'll also have access to their public quarterly reports. While the City cannot guarantee the total elimination of risk — we discussed this rather energetically yesterday, business is
always about risk, there are no "safe" business transactions, the best the City can do is minimize risk and facilitate/mediate bankrupcy suits — the City can say "this company has a good track record, they have L$150,000 in assets and money in escrow, and they're pretty safe to deal with, if you're signing a contract for L$1000 with them, we can give you good hopes for successful business transactions".
This is not unlike a stock exchange 'rating' done by those specialized companies like Merryl Lynch. They can't guarantee you on a 100% that buying public stock from a AAA rating is going to guarantee that you'll make enough money to buy a private island in Greece

But at least they can tell you that it's generally safer to deal with them. Unlike 'auditors' or 'ratings', however, the City of Neualtenburg can give an extra 'safeguard' to potential customers: they know, if something goes wrong with their L$1000 contract, they won't lose
everything. At the very least, they'll get L$1 (assuming 150,000 residents are defrauded

). That's WAY MORE you can get dealing with a Neualtenburg-incorporated company, compared to dealing with a mainland 'company'

(L$1 is always better than L$0

)
Also notice that this extreme case will never happen. Assuming all L$1000 contracts are also notarized, a suspicious customer will say "yeah right, but how many L$1000
have you signed so far??" They can check it up on the notary! If the total number of contracts is below 149, the contract is almost absolutely safe to sign... on the worst case scenario, all customers could get indemnification from the money held in escrow.
So, while the incorporation model, using an escrow system, does not guarantee 100% risk-free business, it definitely can guarantee a
lot more than mainland 'companies' (which are nothing more than individuals with a fancy title). I can even imagine people like Anshe having a 'branch' in Neualtenburg with one million L$ in escrow just for the purposes of doing business with those extra-suspicious types; she knows that perhaps only one in thousand will ever really wish to go the whole trouble of notarizing a contract and having it accountable under Neualtenburg common law; but she
can use that as a (free) marketing ploy: "if you don't trust me, let's sign this contract under Neualtenburg law". I imagine that in half a year or so, major SL economy players will have a tiny "local branch" at Neualtenburg just for purposes of marketing (while conducting their major businesses outside N'burg, of course, where there is no public accounting, no escrow systems, and no way to file a suit). But that is all right; we just need to attract a handful of those guys, and slowly increase from there.
What I also like about this system is a way to 'fund' the Neualtenburger Bank with more than bonds. I'm not sure if the NB should become an investment bank or not; I rather like the approach of a "federal reserve": encouraging private banks to borrow money from the Neualtenburger Bank, transfer the responsability of escrow to them, set them limits on how long they can invest money and have it "uncovered", but also allowing them to explore investments. In a sense, imagine a Neualtenburg Bank with stock worth several million L$, but spread among several smaller private banks, each perhaps just with a few dozens of thousands of L$, but investing here and there in residents' businesses — or, rather, on
citizens' businesses, since the amount of risk is lower!
I think this might just work. I even think that Neualtenburg will quickly become the victim of copycats trying to improve our model. After all, the
Golden Rule is: who has the gold, makes the rules

And the Neualtenburger Bank will definitely have the gold...