Fiduciary duty is treated across The Bob Zadek Show as an obligation running from a person entrusted with others’ money — a corporate executive, a pension manager, an investment manager — to those who trusted them. Guests invoke it less as a legal standard to be defined than as a boundary marker: it explains what corporate managers may legitimately do, and it is repeatedly distinguished from what the government may legitimately criminalize or compel.
Fraud, fiduciary duty and insider trading
In the 2009 episode on legalizing insider trading, Don Boudreaux, identified as a professor of economics at George Mason University, drew a line between fraud and trading on non-public information. He told listeners that no one is advocating that company executives engage in fraud, and that no one is advocating that company executives violate their fiduciary duties Legalize Insider Trading (2009). The constraint he described is corporate rather than statutory: companies themselves should be allowed to say what kinds of information are and are not off-limits to inside traders, and if a company does not impose such a rule, the government should not do it for them. Where a company does impose the rule, Boudreaux said, the company should be allowed to sue people who violate its bylaws in court.
Boudreaux framed the fairness objection to insider trading as a question about the honesty of prices rather than about the duties of insiders. A trader, he argued, should want a stock price to be as honest as possible, because the real unfairness is being misled by a price that turns out to have been too high — a loss that insider trading would have prevented by moving the price earlier. Bob Zadek, the host, attributed to Milton Friedman the statement that more insider trading, not less, is needed, and Boudreaux agreed, adding that Friedman knew a thing or two about economics and free markets Legalize Insider Trading (2009). Boudreaux named Henry Manne as the theorist who first started thinking along these lines in the 1960s and as the author of the seminal book on the subject; Zadek supplied the book’s title, Insider Trading and the Stock Market. In this treatment, fiduciary duty is a private obligation that companies may enforce, not a public one the state may enforce in its place.
Fiduciary duty as a driver of rent-seeking
Mike Munger, in the 2015 episode on money in politics, gave fiduciary duty a different role: not a restraint on executives but the reason they lobby. Speaking of the chief executive of a corporation, Munger said he has a fiduciary duty to try to maximize the value of shareholders, and glossed the word himself — fiduciary means that he is trusted by shareholders to try to increase the value of their investment, which is how stock price goes up Who Wants to Buy a Politician? With Mike Munger (2015). From that premise Munger argued that a CEO is obliged to spend money on government programs and to approach members of Congress, because doing so increases profits more.
The conclusion Munger drew was exculpatory for the corporation and incriminating for the government. Blaming a corporation for this behavior, he said, is like blaming a dog for eating out of the garbage. What is needed is to change the playing field so that the incentives for campaign contributions are less, which requires government to stop selling policy. Munger described the situation not as a market failure but as a government failure, attributing the volume of money in politics to elected officials who, because there is no competition, have put policy up for sale Who Wants to Buy a Politician? With Mike Munger (2015). Here fiduciary duty is the mechanism that transmits political incentives into corporate behavior; the duty itself is not the problem.
To whom is the duty owed?
The 2021 episode with Roger L. Martin staged an explicit disagreement over the object of the duty. Zadek put the question directly — to whom do managers of corporations owe their fiduciary duties, and do they owe it only to shareholders? — and answered that shareholders are the only group to whom that loyalty is owed. Martin, identified as the author of a book on the subject, replied that this is certainly not the law: their fiduciary duty to their company is the law When More is Not Better (2021). Zadek responded that the company is owned by the shareholders, then proposed moving past the point.
Martin’s larger argument was about effectiveness rather than ownership. He said that ever since the doctrine that a company’s job is to maximize shareholder value took hold, companies have done a worse job of maximizing shareholder value, and he compared the direct pursuit of happiness to the direct pursuit of shareholder value: corporations that announce that goal invite customers to feel they have a target on their backs and employees to wonder why they get out of bed. Serving customers in a fantastic, unique way, he said, is what maximizes shareholder value. Zadek said the two of them agreed completely and that there was no space between them, adding that underpaying workers and mistreating customers may yield short-term benefit but that in the long run the firm fails, citing Macy’s as an example When More is Not Better (2021). Martin called the shareholder-value motif dominant in the corporate world and wrong, and tied it to an unthinking pursuit of efficiency at ever greater magnitude.
Fiduciary duty and the political pollution of capital markets
In the 2022 episode with Paul Atkins, fiduciary duty appears as a standard that fund managers are said to be violating. Atkins described investment managers going behind closed doors to tell corporate management that they will vote against them at an upcoming shareholder meeting, or disinvest, or refuse to lend, unless the company adopts standards the managers approve of — pressure he characterized as strong-arming, almost mafia-type tactics The Political Pollution of Capital Markets (2022). The consequence, he said, is that returns are cut down and investors saving for retirement or in a mutual fund will have less money to live on.
Atkins extended the point to passive index funds, arguing that investors in large ETFs or mutual funds are unwittingly powering an ideological strategy advanced by people in big cities on the coasts who may not share their outlook or their goal of financial returns. He said there is no transparency for investors about how their money is being used, and that the fiduciary duty of pension managers and other financial managers to their investors should be inviolate The Political Pollution of Capital Markets (2022). He cited a PricewaterhouseCoopers survey finding that 78% of investors are willing to pay a 3% to 5% premium to invest in ESG, and noted that investment managers have an interest in pushing ESG because they can charge higher fees for it. He also said that 26 state financial officers, in the red states, have been putting contrary pressure on investment management firms, and that Florida has taken money away from some managers for these reasons.
Zadek framed the episode’s scope: the show was expressing no opinion about ESG as a concept or a goal, and he declared himself agnostic on that. His stated concern was who gets to decide how money is used. Earlier in the conversation he had drawn an analogy between shareholder voting and the franchise: Americans cherish the right to vote, and the right to vote shares of stock is the same thing, so it is offensive if representatives do not vote in the owners’ best interest The Political Pollution of Capital Markets (2022). He also asked whether a fund pledging to invest on a purely economic basis would crowd out funds that subordinate yield to social goals; Atkins answered that some such funds are emphasizing that approach and growing, and that over time he agreed this would happen.
Across episodes
The topic recurs in four episodes spanning 2009 to 2022, and the treatment shifts with the subject rather than developing a single argument. Boudreaux (2009) uses fiduciary duty to mark the outer limit of what government may criminalize, leaving enforcement to companies; Munger (2015) treats the duty as the reason corporate political spending is rational and blames government for the incentives; Martin and Zadek (2021) disagree openly about whether the duty runs to shareholders alone or to the company; and Atkins (2022) invokes the fiduciary duty of pension and investment managers as a standard being violated by ideologically motivated proxy voting and behind-the-scenes pressure. The excerpts show no shared definition of the term and no cumulative refinement of it.
What the sources do not cover
The excerpts do not state the legal definition of fiduciary duty, the statutes or cases that impose it, or the remedies for its breach. They do not identify the court decisions, bills or amendments that govern insider trading, proxy voting or pension management, and they do not say which jurisdiction’s law Martin had in mind when he said the duty runs to the company. The Atkins excerpt breaks off mid-sentence in one passage, and the Boudreaux and Munger excerpts contain section breaks where material is missing, so several arguments are only partially reported.