Groupon falls below $20/share
groupon is a pseudo ponzi scheme. For any market X there exists a high variability for profitable, volume adjusted, daily deals (resource {R}), which people want. After time t, the most desired deals r in resource R are exhausted, leaving behind lesser deals (deals which make substantially less revenue-share). So as t >> T, only less desired deals remain for market X, hugely eroding profits margins, given the high fixed cost to set the deal. So the only way to maintain margins is to enter a new market Y, where r (very profitable daily deals) is in high supply. But eventually this market will be exhausted of r, and margins will again collapse. Therefore Groupon must continually enter new markets to maintain margins, which it has been doing. But there are only a finite number of markets. So eventually Groupon will collapse. This is an intrinsic problem of the daily deals market. Google may overcome it, if it can implement it's near field communication strategy, or automate the bidding process. But other daily deals site, like Living Social, with high employee counts, are bound to fail.