In 1950, finance and insurance in the United States accounted for 2.8% of GDP, according to US Department of Commerce estimates. By 1960, that share had grown to 3.8% of GDP, and reached 6% of GDP in 1990. Today, it is 8.4% of GDP, and it is not shrinking. The Wall Street Journal’s Justin Lahart reports that the 2010 share was higher than the previous peak share in 2006.This is a pretty astounding indictment of the sleaze, corruption, and fraud in America's financial industry that has let it grow huge despite providing no real benefits to justify its larger share of national GDP.
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But if the US were getting good value from the extra 5.6% of GDP that it is now spending on finance and insurance – the extra $750 billion diverted annually from paying people who make directly useful goods and provide directly useful services – it would be obvious in the statistics. At a typical 5% annual real interest rate for risky cash flows, diverting that large a share of resources away from goods and services directly useful this year is a good bargain only if it boosts overall annual economic growth by 0.3% – or 6% per 25-year generation.
There have been many shocks to the US economy over the past couple of generations, and many factors have added to or subtracted from economic growth. But it is not obvious that the US economy today would be 6% less productive if it had had the finance-insurance system of 1950 rather than the one that prevailed during the past 20 years.
There are five ways that an economy gains from a well-functioning finance-insurance system. First, people are no longer as vulnerable to the effects of fires, floods, medical disasters, unemployment, business collapses, sectoral shifts, and so forth, because a well-working finance-insurance system diversifies and thus dissipates some risks, and deals with others by matching those who fear risk with those who can comfortably bear it. While it might be true that America’s current finance-insurance system better distributes risk in some sense, it is hard to see how that could be the case, given the experience of investors in equities and housing over the past two decades.
Second, well-functioning financial systems match large, illiquid investment projects with the relatively small pools of money contributed by individual savers who value liquidity highly. There has been one important innovation over the past two generations: businesses can now issue high-yield bonds. But, given the costs of the bankruptcy process, it has never been clear why a business would rather issue high-yield bonds (besides gaming the tax system), or why investors would rather buy them than take an equity stake.
Third, improved opportunities to borrow allow one to spend more now, when one is poor, and save more later, when one is rich. Households are certainly much more able to borrow, thanks to home-equity loans, credit-card balances, and payday loans. But what are they really buying? Many are not buying the ability to spend when they are poor and save when they are rich, but instead appear to be buying postponement of the “unpleasant financial retrenchment” talk with the other members of their household. And that is not something you want to buy.
Fourth, we have seen major improvements in the ease of transactions. But, while electronic transactions have made a great deal of financial life much easier, this should have been accompanied by a decrease, not an increase, in the finance share of GDP, just as automated switching in telecommunications led to a decrease in the number of telephone switchboard operators per phone call. Indeed, the operations of those parts of the financial system most closely related to technological improvements have slimmed down markedly: consider what has happened to the checking operations of the regional Federal Reserve Banks.
Finally, better finance should mean better corporate governance. Since shareholder democracy does not provide effective control over entrenched, runaway, self-indulgent management, finance has a potentially powerful role to play in ensuring that corporate managers work in the interest of shareholders. And a substantial change has indeed occurred over the past two generations: CEOs focus much more attention than they used to on pleasing the stock market, and this is likely to be a good thing.
Overall, however, it remains disturbing that we do not see the obvious large benefits, at either the micro or macro level, in the US economy’s efficiency that would justify spending an extra 5.6% of GDP every year on finance and insurance. Lahart cites the conclusion of New York University’s Thomas Philippon that today’s US financial sector is outsized by two percentage points of GDP. And it is very possible that Philippon’s estimate of the size of the US financial sector’s hypertrophy is too small.
Why has the devotion of a great deal of skill and enterprise to finance and insurance sector not paid obvious economic dividends? There are two sustainable ways to make money in finance: find people with risks that need to be carried and match them with people with unused risk-bearing capacity, or find people with such risks and match them with people who are clueless but who have money. Are we sure that most of the growth in finance stems from a rising share of financial professionals who undertake the former rather than the latter?
Sadly, no govenment has taken on this issue and tried to cut the financial industry down to size to make it more economically efficient. Exactly the opposite has occurred. Over the last 30 years great laudatory sermons have been given about "enterprise" and "unleashing business from regulation" when in fact this has proven to be catchwords for turning a blind eye to corruption and crime on an unimaginable scale. The American people have been hoodwinked and lied to and nobody has yet been held accountable because the rich and powerful have bought off the politiians.
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