@Deprived I think you didnt understand the system completly. Those 45 BTC you think that BI will lose, come from the "extra interest" generated, by working with the money. Its no fix amount yet, as we dont know which rates we get ourself from save investments and therfor not what we can pay to the loser. Those 45 BTC represent the interest for 1 cycle (3 months) for 200 BTC which calculates to 7.5% monthly (0,075 * 200 * 3 = 45)
Yeah, misread it - the 22.5% I calculated is for 3 months not 1 week. So your (BI's) profits in that example are whatever profit you can generate over about 7% per month (allowing for compounding) on funds available to you.
The problem then becomes making that 7% - essentially the vast majority of shares/bonds on here are either:
1. Mining bonds/shares - good luck making 7% a month on those.
2. Companies investing in shares - most of these invest in 1., meaning you pay them a fee. Try finding some of these who have made ANY real profit over any significant period.
3. The high-risk stuff that people want to insure.
4. Comapnies with an undisclosed business plan (typically making unsecured loans that then get defaulted on or investing in type 3. shares and defaulting when the investment gos South). The track record of these is far from good.
There's just not much else around to invest in - and pretty much nothing that you can safely rely on to make retuirns of over 7% per month. There's some ASIC-based shares (mining or development) which may be good bets - but they all have risks of a serious downside, which you can't afford to take.
Try to list even half a dozen shares that will pretty reliably give you 7%+ per month AND have the liquidity you need.
Now look at it from an investor's point of view. If these reliable investment vehicles are available to you paying out 7%+ per month then they're also available to us. So for an investment in you to be worthwhile, you need to have potential to be paying US out more than that 7%+ per month (not initially, obviously, but longer-term). SO we'd want to see figures from you showing what volume you needed (based on the capital requested) to deliver good returns.
I believe usagi is likely correct that there's no real market for it. There's plenty of market of people who would want to "insure" against default - but those with the confidence to take the other side of the bet will just invest directly.
The only real exception to that would be the actual issuer of P IF it was just a simple scam/ponzi - then they could reduce their payouts by "insuring" them right up until before they pulled the plug on it. Maybe that's where your market is.