September 22nd, 2009, 12:17 pm
QuoteOriginally posted by: DavidJNI'm coming to this thread at a rather late stage, so I don't know what the latest topic here actually is, but as a veteran front office guy I find it hard to resist smiling when some some b-school or econ ingenue (not claiming any of you are, btw) spouts off this efficient markets nonsense. Look, ask yourself how many firms are (were?) big players in the credit derivatives market (or any commodity market, or practically whatever financial market you can name)? You'll generally find a handful of firms doing the lions share of the business. At the opposite end of reality is the perfect competition model, which is a limiting result with an infinite number of competitors. You can see where I'm going here. Leave the mad professors at the University of Chicago to chant the mantra of competition and efficient markets, there's not much of that here on the ground level. What does this mean? If, as I firmly believe (and profit by, thank you very much), financial markets are not competitive, governments should tax the living sh*t out of the financial companies. This would solve two big picture problems: 1) taking away the excess profits and 2) simultaneously dealing with the agency incentive problem that clearly spurred financial execs to take on highly levered bets. If the huge profits are taxed away then the big bonuses will be a thing of the past. Before you start typing your repy that I'm a commie, please take a deep breath first and go back and look at what your econ 101 textbook has to say about perfect competition - it rarely happens on this planet. And of course I realize that my "big idea" would be problematic in reality because some jurisdiction will always want to not play along so as to lure the business into its borders. It would be a lot to ask so many politicians to agree on anything.First, I don't know that anyone is claiming "perfect competition" in the financial industry. We're only trying to estimate the % of sector profits that are true "excess" and the sources of those "excess" profits (e.g cartel behavior, skew returns, supply/demand imbalances, etc.). Second, I doubt that taxing the living sh*t out of the financial companies would be the optimal response for two of the three sources of excess profits that I've listed. First, if financial companies are generating profits via cartels (H1), then increasing their taxes will only increase the pressure to maintain the cartel. Moreover, the taxes would hardly be directly transfered from the cartel to those most harmed by cartel behavior (i.e., would-be new competitors, and consumers of financial services). Large consumers of financial services (i.e., those with large household balance sheets such as big equity accounts, big pensions, and big mortgages on big houses) aren't likely to receive wealth transfer payments from the government. Thus, taxing the industry simply becomes a way for the government to make excessive profits on the sector's excessive profits (and creates financial incentives for the government to preserve the cartel system). Second, if profits are high because growing demand for financial services truly exceeds the growth of supply of the services (H3), then high taxes will only stifle supply growth and enable further price escalation. The solution to a shortage of supply isn't taxes on supply. Third, only in the case of skewed returns (H2), might high taxes be useful both in terms of reducing the incentives to generate excessive profits (assuming the taxes target profits and not revenues or assets) and in terms of collecting money to cover future systemic risks. That is, the taxes become de facto insurance premiums paid to support bailouts of the industry when it crashes.P.S., I'm the wrong gender to be an econ ingenue but will readily admit that I'm an econ amateur.