And there is, of course – a limited liability company is basically a means of protecting its owners from the private consequences of the company becoming bankrupt. Being able to fund a business operation through borrowing is, of course, necessary and, in most cases, effective. In efficient markets, lenders’ risks are handled by means of interest rates and contract clauses. The limited liability company is thus a historically wealth-generating social institution. Nevertheless, the example illustrates that the higher cost of funding through equity is more a matter of private than social costs. Another factor that separates the costs for own and borrowed funds is the tax system. Companies may deduct interest on loans, but pay corporate tax for profits on equity. But this is just a private economic difference – from the social perspective, the only difference is the subsidisation of debt-financing in preference to equity. This specifically applies to banks that may be systemically important – it would be socially costly to allow them to file for bankruptcy. So the market often expects that the state will save a bank that is on the ropes, one way or another. These so-called implied guarantees create even greater differences between social and private costs, and risk leading the banks to take even greater risks. Banks are vulnerable, contagious and sometimes systemically important. There are great differences between private and social cost-benefit calculations. Economic theory and empirical experience gives us good reason to regulate banks.
Third, substantial progress has been made on the large adjustment of financial positions in the household and financial institution sectors necessary after the substantial leveraging of households and financial institutions that occurred in the run-up to the financial crisis. Confidence is increasing that conditions are now in place to support sustained abovepotential growth, when it occurs.   Aided by the second installment of Large-Scale Asset Purchases (LSAPs), financial conditions have improved. After equity prices, interest rates and inflation expectations fell with the apparent slowing of the economic recovery in the summer, they began to move up again shortly after Chairman Bernanke’s speech laying out potential responses to the slowdown in late August in Jackson Hole, Wyoming (Charts 17–20).   The personal saving rate has risen to a level that is consistent with the historical relationship between that rate and household net worth relative to disposable income, reflecting the very large drop in household net worth from the combined impact of financial crisis and severe housing downturn (Charts 21–22).   The household financial obligation ratio has declined to the level that prevailed in the mid 1990s, reflecting a combination of debt repayment, debt charge-offs and lower interest rates (Chart 23). Households in all credit-quality quintiles are continuing to reduce their overall debt (Chart 24).   Banks tightened lending standards during the financial crisis and recession. Bank lending standards, while tight in level terms, have begun to ease (Chart 25).