For the few months I've been playing Spiral Knights, I've seen on more than one occasion deliberate attempts to increase the price of Crystal Energy on the market by a small group of players in order to inflate their hoard of Crowns and Crystal Energy. In my opinion, this is a horrible and undesirable way to play the game, as they are essentially making money off of exploitation of a limitation of game design. It also seems similar to illegal behavior in a real-life stock market--something which I believe should be discouraged. Additionally, while it is still easy to profit from doing runs in the Clockworks despite the inflation, I (and others, I'm sure) feel frustration with the reduction in profits through factors completely out of my control. I also understand that inflation is natural, but I do not believe than artificial acceleration of this natural economic process should be allowed. As such, I've tried to come up with a few solutions to the issue that may be effective without being drastic or overbearing.
From my observations, the above is accomplished through exploitation of a simple knowledge of economics and psychology. Since there are a large number of players who want to buy Crystal Energy as quickly as possible and only five proposed buy prices are shown at one time, it is possible for one to create a "price wall" in the Crystal Energy market without ever intending to buy Energy. Said price wall is usually somewhere around 6 to 10 offers deep and causes the aformentioned quick-buy players will inevitably place their offers above due to their lack of time and desire to research the correct price. A simple method to create such a wall is by blocking the small five-price window with a large amount of offers to buy at a given price surrounded by a good amount of additional offers nearby. For example, a block of 100 offers at an arbitrary price, with 5 to 10 offers apiece at two prices below and 4 above the arbitrary price is sufficient to establish this artificial wall. This method would take less than 20,000 Crystal Energy, which is a very small sum to many of the more well-off players. In short, the limited vision given by the five-price window allows players with a large amount of Crystal Energy to fool other players into buying Crystal Energy for higher prices than is actually needed.
I may be making wrong assumptions and drawing incorrect conclusions, but, from the best of my ability, the above is a good representation of what I believe is occurring. As for the potential solutions....
1) Increase the amount of buy offers visible, possibly by creating a scrolling window or even a page system like the Auction House. This would greatly increase the market knowledge that quick-buy players would have available with little to no additional time investment. It would also make it exponentially more difficult for the exploiters to create a price wall.
2) Decrease the amount of offers one player may put up on the market at any given time. Part of the reason why it is possible to create a price wall is the sheer magnitude of offers a single player may place on the Crystal Energy market. Even worse: it costs them absolutely nothing to do so. By taking away the ability to put an unrealistic amount of offers up on the stock market, this ability may be removed.
Unfortunately, these are the only two solutions I could come up with that do not unduly disrupt the game. I welcome other suggestions from other players though. :)
Thank you for your time!
Hikaran
EDIT: Suggestion from a friend
3) Impose a fee for creating a market offer--one which is refunded upon a successful transaction. By making malicious pricing behavior more risky and likely to incur loss, it may be possible to discourage players from making these price walls. Essentially, it would be like the Auction House in encouraging realistic offers while discouraging artificial price inflation (by mass buying/reselling).
Or they could just make the vendors themselves accept less CR for CE, that should deflate it a bit.