6 ideas
Finance justifies itself only through four services to the real economy: operating the payments system, matching lenders with borrowers to allocate capital, helping households manage their wealth across their lifetimes, and letting people and businesses manage risk. Any activity that cannot be traced back to one of these functions is a candidate for being rent extraction rather than value creation.
Financialisation is the process by which most financial activity becomes trading among financial institutions rather than transactions with households and non-financial firms. Balance sheets and turnover balloon because banks mostly hold claims on other banks, while lending to businesses that build things is a small and shrinking share of the total.
Because secondary-market trading is close to zero-sum before costs, the large profits earned by trading desks must come from somewhere, and they come from less-informed counterparties, end savers and taxpayers. Measured profit in finance is mostly redistribution from users to intermediaries, not wealth created.
Mark-to-market and mark-to-model accounting let firms book as current income the expected future profits on long-dated positions, and pay bonuses on those figures before the risks show up. Profits built this way can later turn into losses that other people absorb, so reported earnings in finance should be treated as provisional.
Diversification looks like it reduces risk for each firm, but when every institution holds similar positions and is linked to the others, the system as a whole becomes more fragile. One failure then spreads through counterparty chains. Kay argues that robustness comes from modularity and simplicity, not from ever more elaborate risk models and regulation.
Reform should split the essential payments and deposit-taking utility from speculative trading, so that the state guarantees only the narrow utility. Trading businesses should then be free to fail, with no implicit bailout. Intermediaries should also carry fiduciary duties to their clients, restoring stewardship in place of transactional relationships.