Illustration: Kerrie Leishman. Among financial-industry lobbyists and House Republicans, the knives are out to roll back more of the constraints imposed on Citigroup and other big banks. But now, in an abrupt and commendable turnabout, the Obama administration put the issue of conflicts of interest in the financial sector firmly on the table. The specific context involves the investment advice given to people saving for retirement. The decisions these savers must make are complex and can have profound consequences. Getting it right is difficult even under the best of circumstances. What will interest rates be? How long will you and your spouse live? What will your commitments to your children be, and for how long? But perhaps the most important question is whether you can trust your financial adviser. Some financial advisers in the United States are paid not on the basis of how their clients do, but according to what financial products they persuade them to buy.

Dennis Kelleher of Better Markets, a pro-reform group, recently summed up the current situation well: "[A]dvisers can recommend investments that generate lucrative commissions for them, even though their clients get stuck with high fees, subpar performance, and unacceptably risky products." Kelleher has been an effective critic of the administration in recent years, pushing long and hard to address all potential conflicts of interest in finance. And now his analysis and recommendations are being echoed in a new report issued by the Council of Economic Advisers. "Such fee structures," the CEA warns, "generate acute conflicts of interest: the best recommendation for the saver may not be the best recommendation for the adviser's bottom line." And the CEA goes further, estimating that conflicted investment advice leads to a one-percentage-point drop in return. In today's low-interest-rate environment, that's a huge potential loss. (The actual impact will also depend on what happens to equity prices in the coming years.) The CEA report provides a useful primer on the issues and data. I wish they weighed in more frequently on finance-related issues, rather than deferring to the US Treasury.

Or they could just listen to Senator Elizabeth Warren as she speaks out repeatedly on a broad range of financial-reform issues. (Warren joined Obama in unveiling the proposal to protect retirement savers.) Not surprisingly, at least some people at the US Securities and Exchange Commission have reacted negatively – this is stepping onto their turf, after all. And the lobbyists are, naturally, out in full force. But with sufficient White House willpower, the administration can see this through. What is needed is a change in the rules set by the Department of Labor, which has jurisdiction over retirement-related issues. No doubt industry defenders will claim that current practices benefit small investors – a point disputed directly by the CEA. The broader and more interesting question is: Where are the statesmen in the financial industry? Where are the leaders who push for a race to the top, by better serving their clients' best interests? Jack Bogle, who built his investment-management company, the Vanguard Group, on exactly this principle, with a clear focus on lower fees at every opportunity, has come out strongly in favour of the administration's proposal. Unfortunately, his remains a lonely voice.

Everyone who provides investment advice to retirement savers should act solely in their clients' best interests. And, judging by the high number of distinguished and honorable professionals in the industry, many advisers, if not most, already do. But there also are too many people being exploited, which harms them individually and discourages savings more broadly. That is why the law should be amended to eliminate as many potential conflicts of interest as possible, by requiring all retirement advisers to act in their clients' best interests at all times. Such a requirement would be a promising start, but there is still a long way to go. All retail investors, not just retirement savers, deserve the same legal protection. Until they get it, the best investment advice may be to assess your adviser carefully, bearing in mind a well-tested performance metric: "Where are the customers' yachts?" Simon Johnson is former chief economist of the IMF, is a professor at MIT Sloan, a senior fellow at the Peterson Institute for International Economics. Project Syndicate