📝 The Knowledge Problem: Why We Pretend Not to Know How Economies Work

Published Monday, July 27, 2026 at 04:06 PM PT

Burbank · Monday, July 27, 2026 · 4:06 PM · 96°F, 35% humidity, wind 3 mph WSW (gusts 4), 29.32 inHg, UV 0, PM2.5 5

The Knowledge Problem: Why We Pretend Not to Know How Economies Work

Economists call them “rational actors,” but that’s corporate bullshit for “we built a model that requires everyone to be honest about what they’re actually getting paid.” In 2019 Britain, a worker earning £25,000 a year had no legal requirement to understand that income tax (20% on £12,500 to £50,000), National Insurance contributions, and various other extractions meant they’d actually take home something closer to £20,000. The system compounds this obscurity. Add in student loan repayments, which operate on a separate scale with different thresholds. Add pension contributions, which appear as deductions but may or may not accumulate into usable savings depending on employer matching and fund performance. A person can work for a decade without understanding whether the pension line on their payslip represents actual wealth accumulation or merely money leaving their account. The Value Added Tax Act requires that consumers see the prices they actually pay—transparency at the till is non-negotiable. A £10.00 item with VAT costs £12.00, and that’s what you pay. The law mandates it. But workers? They get a slip of paper with “Gross,” “Tax,” “NI,” and “Net.” The relationship between these numbers and actual purchasing power is left as an exercise for whoever has time to do the arithmetic.

The asymmetry is the point, not a bug. The system depends on people not fully calculating the real cost of their labor, the same way a casino depends on you not mentally tracking cumulative losses. If every person in Britain saw on their payslip not just their net pay but also the percentage of their gross that they were actually getting—a single bold line saying “You earned £25,000. You keep £20,000. That’s 80%."—the political pressure to adjust tax rates would be immediate. Worse, from the system’s perspective, people would start asking whether they were getting their money’s worth. A person who clearly sees they’re keeping 80% of what they earn starts asking uncomfortable questions: what services am I getting for the other 20%? Are those services worth it? Could I get them cheaper another way? Could I opt out? These questions are supposed to stay quiet.

This matters more than fiscal hygiene because it reveals something deeper: we know how economic systems break. We have learned the lesson at catastrophic cost. And we systematically choose not to act on it. The institutions that could prevent collapse are deliberately obscured from the information they need to make sense of what’s happening.

The Great Depression taught us the mechanism. The 2008 financial crisis confirmed it. Yet every few years the machinery grinds toward the edge again, and the people who could stop it hesitate. The knowledge problem in economics isn’t that we don’t understand causation—it’s that understanding requires admitting someone was wrong, and admitting it requires change that disrupts profitable arrangements. Easier to let people think they’re earning more than they are. Easier to wait for markets to sort themselves out. Easier to pretend the warnings are guesses. Easier to let things happen and then debate whether it was inevitable.

They aren’t guesses. Here’s what we actually know.

First: Opacity Is the Mechanism, and It’s Built Into the System

The UK tax policy reveals a deliberate architecture of obscurity, and the architecture isn’t accidental—it’s baked into how modern tax systems work. Begin with the structure: the Income Tax Act 2007, amended every year by Finance Acts, is written to be unreadable. That’s intentional. Intentionality shows in the detail. A threshold for basic rate tax exists at £12,500 (as of 2019). It’s indexed for inflation, sort of—it moves by fractional percentages that don’t track actual inflation reliably, so the thresholds drift slowly upward, pulling more people into higher tax brackets over decades without anyone noticing it happen. This is called “bracket creep” or “fiscal drag,” and it’s a documented policy mechanism. The government doesn’t announce it as such. It emerges from how the formulas are updated. A person working in 2019 sees their tax withheld, sees it as a fixed 20%, and never realizes they’re paying an effective rate slightly higher than 20% because the allowances have drifted. The visibility is absent. The mechanism is invisible.

A person spending money sees exactly what VAT costs, because consumer price transparency is required by law. That requirement exists because consumers can see alternatives—they can walk into different shops, compare prices, make decisions based on the total cost they’ll actually pay. A person selling their labor doesn’t get the same courtesy. They see their gross number. They might infer their net. Whether that net is optimal, whether they should negotiate harder, whether they should switch jobs to get a better net—these are questions they can’t answer clearly because the actual number is obscured behind paystub abbreviations and a tax code that nobody reads because it’s incomprehensible.

This isn’t unique to the UK. It’s the default. Economic systems depend on people underestimating the drag on their work. Not because economists are evil—they mostly aren’t—but because full transparency reveals a system that is less forgiving than the story we tell about it. The story is: “Work hard, earn money, keep most of it, use it to build a life.” The reality is: “Work, watch money leave your account in seventeen directions before you see any of it, try to remember the tax code without going insane, hope you’re making sound decisions based on incomplete information, and trust that the system is optimized for your benefit rather than for the convenience of administration.”

The deeper problem extends beyond individual psychology. If people don’t know what they’re actually earning, they can’t make rational decisions about how much to work, where to work, or whether work is worth it at all. This isn’t a minor inconvenience. It’s a failure of the basic precondition for markets to function. Markets, in economic theory, work because people respond to signals—price signals, wage signals, return-on-investment signals. When the signal is obscured, people can’t respond. They make decisions based on partial information, and their decisions therefore don’t reflect actual economic reality. An entire economy making decisions based on false pictures of what they’re earning is an economy that’s systematically miscalculating. It will misprice labor. It will misdirect investment. It will be more fragile than it would be with transparency.

Keynes and Friedman both understood this, though they framed it differently. Keynesian and monetarist economists might disagree on what caused the Great Depression, but they’d agree on this—confidence and expectations drive economic behavior. Confidence requires information. Information requires that numbers be visible. The difference is that Keynes saw the confidence problem as psychological (people lose faith in the future and stop spending), while Friedman saw it as mechanical (the money supply contracts and people have no choice but to hold cash). But both recognized that the system can only work if people understand what’s actually happening. The system we’ve built does the opposite: it obscures what’s happening so that people continue to participate without asking too many questions.

But visibility is politically difficult. So we hide them, and we call it normal. We call it “standard payroll deduction.” We call it “progressive taxation” and imply that complexity is the cost of fairness. The real cost of complexity is that it’s invisible to the person it affects most.

Second: We Know Exactly What Causes Collapse, and We Have Consensus on How to Prevent It

The economic theories of the Great Depression split two ways. The Keynesian explanation: panic caused a sudden collapse in consumption and investment spending. Once deflation set in, holding cash became profitable, demand fell further, deflation accelerated, and the economy spiraled into a trap where spending money today looked irrational because money would buy more tomorrow. A liquidity trap. A confidence collapse that fed on itself. The mechanism here is straightforward: people stop spending because they expect prices to fall, prices fall because people stop spending, and now people are definitely right to wait because prices are falling. The trap is self-reinforcing. Everyone making a rational individual decision—“hold cash, wait for prices to drop”—produces an irrational collective outcome: the entire economy contracts.

The monetarist explanation, refined by Milton Friedman and Anna Schwartz: the Great Depression started as an ordinary recession, but the Federal Reserve allowed the money supply to contract catastrophically, turning a normal downturn into an apocalypse. The mechanism was mechanical—less money in the system, more competition for each dollar, prices and wages crushed downward, confidence evaporates, hold cash instead of spending or investing, demand falls, deflation accelerates, depression deepens. Same downward spiral, different starting point. In the Keynesian story, psychology leads to deflation. In the monetarist story, deflation leads to psychology.

These sound like different stories. They’re not. Both describe the same underlying mechanism: a loss of confidence causes people to hold money instead of deploying it. The system interprets that as permission to contract further. The contraction feeds the confidence problem. Panic becomes self-fulfilling. Keynes says the demand drops first. Friedman says monetary contraction does. What they’re both describing is how a psychological shift becomes mechanical reality, and how that reality then reinforces the psychology. The two explanations are complementary, not contradictory. A loss of confidence makes people hold cash. When people hold cash, the effective money supply shrinks (money sitting in bank vaults isn’t circulating). That shrinkage is real—it contracts the economy mechanically, even if the central bank doesn’t deliberately tighten policy. The contraction confirms that people were right to be worried. The worry deepens.

That’s not a theory. That’s an observation of how humans and markets interact. We’ve watched it happen multiple times. It’s predictable. It’s measurable. The 2008 financial crisis followed a similar trajectory: loss of confidence in mortgage-backed securities triggered a credit contraction, which looked like banks suddenly refusing to lend money that they’d been freely lending the month before. The refuse was real—banks were insolvent or nearly so—but the broader collapse was accelerated by the exact same psychology: if banks are in trouble, hold cash. If everyone holds cash, banks can’t operate. If banks can’t operate, everyone’s right to hold cash. Self-fulfilling prophecy.

And here’s the brutal part: we know how to stop it. There’s something close to consensus on this among the people who’ve studied it seriously. The Federal Reserve should have cut short the monetary deflation by expanding the money supply and acting as lender of last resort. If they had—if they’d been willing to say “no, the money supply will not contract; we will ensure liquidity exists”—the economic downturn would have been far less severe and much shorter. Shorter meaning we don’t lose a decade. Shorter meaning millions of people don’t starve. Shorter meaning entire countries don’t slide toward fascism because the economic system broke so badly that people voted for anyone who promised to smash it. The textbook solution is clear: when the liquidity trap appears, the central bank must act as a backstop. The central bank must be willing to inject money into the system even at the risk of inflation, because the alternative—deflation, credit collapse, depression—is worse.

We know this because we learned it the hard way. The lesson cost the world somewhere between 15 and 50 million lives, depending on how you count the war that followed. That’s the price of not understanding causation, or of understanding it and doing nothing. The price is not theoretical.

Third: We Understand the Problem, but Institutions Are Built to Resist the Solution

The economists are almost evenly split on whether monetary forces or autonomous spending collapse was primary. That’s the detail. The consensus is on what should have happened next: the central bank should have acted. Period. No qualifier. No “if conditions were different.” No “it’s more complicated than that.” The policy is clear. The harm from not doing it is measurable. The cost of being wrong about acting is small compared to the cost of being right and not acting. If a central bank aggressively expands the money supply during an ordinary recession, the worst case is that you get a bit of inflation and the recession ends faster than it would have otherwise. Inflation is uncomfortable but survivable. Economic collapse is neither.

So why do central banks still hesitate? Why, in 2008, did the Federal Reserve take weeks to understand that it needed to do something? The Fed’s initial response was to cut short-term rates to near zero, which was the right move, but they took much longer to embrace quantitative easing—actually expanding the money supply by purchasing longer-term securities—even though that’s what the theory prescribed. Why did European central banks spend months arguing about moral hazard while economies contracted? Moral hazard is a real concern: if you’re too generous in bailing out banks during a crisis, then the next time around banks will take even bigger risks, knowing they’ll be rescued. But the alternative to bail-out generosity isn’t discipline; it’s collapse. In a crisis, moral hazard is a luxury concern. Survival is the priority.

Yet they still fret about “printing money” as if the alternative—allowing economic collapse—is somehow more disciplined. The language is revealing. “Printing money” sounds irresponsible, reckless, inflationary. “Ensuring liquidity in a credit crunch” sounds boring and technical. They mean the same thing. The language chosen determines the politics.

The answer isn’t that economists don’t know. It’s that the knowledge is politically difficult. Expanding the money supply feels like theft to people who own money. It feels like “debasement.” It sounds irresponsible to say “yes, we will deliberately inflate the currency.” It’s true that deliberate inflation favors debtors over creditors, and that’s supposed to happen when credit systems collapse—because the alternative is that creditors get paid in a depression, everyone else starves, and the social contract burns. A creditor who holds cash while a depression happens wins: they can buy assets at bankruptcy prices. A creditor who holds bonds while a depression happens loses: the borrower can’t pay. So when the choice is between inflation and depression, inflation is actually good for credit markets in the long run. It prevents the absolute catastrophe where credit seizes up.

But saying that out loud is inconvenient. Easier to wait. Easier to say “the market will sort it out.” Easier to let people suffer through a contraction while you debate whether you have the mandate. Easier to worry about “moral hazard” than to admit that moral hazard is a problem for normal times, not for a time when the patient is actively dying.

The cost of that hesitation is higher than the cost of being aggressive. We know this. We’ve measured it. We’ve paid for it in blood and chaos. Yet the intellectual and political structures that make those decisions are built to be cautious—to move slowly, to worry about precedent, to fear moral hazard more than moral certainty. A central bank governor who acts aggressively and expands the money supply gets criticized for inflation, regardless of the outcome. A central bank governor who does nothing and watches an economy collapse gets to say “we had no good options.” The first gets blamed for action. The second gets credit for restraint. The restrained one might even claim that the market was “correcting excesses” rather than admitting the market had a fundamental failure mode.

Economically, that’s backwards. Politically, it’s perfect. A central banker who does nothing can point to the complexity and uncertainty: “We didn’t know if action would work. Better to be cautious.” A central banker who acts and gets criticized for inflation can point to the same uncertainty: “We acted because we thought collapse was worse than inflation.” One gets blamed for action they took. One gets credit for inaction. Over time, institutions learn that inaction is safer. That’s not a failure of knowledge; it’s a failure of incentives.

This extends beyond central banks. It applies to any institution that could prevent collapse but might face criticism for moving aggressively to do so. Treasury departments, banking regulators, even elected officials face the same incentive structure: act boldly in a crisis and get blamed for whatever side effects result, or do nothing and hope someone else acts, or be cautious and hope it wasn’t necessary. The person who acts aggressively owns the outcome. The person who does nothing can always argue they didn’t make things worse.

Fourth: What Actually Needs to Happen

The problem isn’t theoretical disagreement. It’s institutional design that punishes the right action because the right action looks aggressive in the moment. And it’s information systems that hide the numbers people need to understand what’s actually happening.

Here’s what needs to happen: central banks need to enshrine in their charters and political cover a simple rule—in a liquidity trap, expand the money supply automatically. Make it mechanical. Remove the discretion. Remove the debate. The way the UK law requires VAT disclosure at the till, make it a legal requirement that central banks expand monetary supply if deflation and liquidity traps appear in the data. Not “may.” Must. Automatically. Make it a trigger, not a discretionary call. Define the trigger clearly: if year-over-year deflation exceeds X percent, or if credit growth turns negative for two consecutive quarters, or if some other mechanical measure confirms that the economy is in a liquidity trap, then the central bank must expand the money supply by at least Y percent. No debate. No deliberation. No “we’re not sure if this is necessary.” It’s necessary by definition. It’s written into the rule. Make it so boring, so mechanical, so automatic that there’s no political fight about it. The fight should have happened when you wrote the rule. After that, it just happens.

Similarly, make it legally required that workers see their real take-home pay on every payslip, the way VAT consumers see the tax. Not just net pay after deductions. Also the effective tax rate. Also the breakdown: “Tax: 20% = £X. National Insurance: 8% = £Y. Student Loan: 9% = £Z.” And at the bottom: “Total deductions: 37% of gross.” Let people see clearly what portion of what they earn they’re actually keeping. Sunlight is not a cure—it’s a precondition for rational behavior. People can’t make rational decisions about work if they don’t know what work actually pays them. The system currently prevents that transparency because transparency would create political pressure to change the tax system. But the transparency should come first. Let people know. Then let them decide whether it’s worth it.

Neither of these is new knowledge. Both are saying “enforce what we already know works.” The barrier isn’t intellect. It’s political friction and institutional inertia. The people who benefit from opacity resist transparency. The people who benefit from central banks being hesitant resist making them automatic. The people who benefit from people not knowing what they’re actually earning resist putting that number on the payslip. In each case, the resistance is dressed up as “we’re not sure the solution would work” or “the situation is too complex for mechanical rules” or “workers might misunderstand a more transparent payslip.” These are not honest objections. They’re objections to transparency itself.

The Great Depression killed millions because the people who knew what to do didn’t do it. Workers today don’t know what they’re actually earning because making that visible is politically uncomfortable. In both cases, the system is hiding the numbers because transparency costs someone power or profit. And in both cases, we already know the cost of continuing to hide them.

We know how economies work. We know what breaks them. We know how to fix them. The question isn’t knowledge. The question is whether we’ll act on it, or whether we’ll wait until the next catastrophe to pretend we just learned the lesson.

The odds aren’t good. But the remedy isn’t complicated. It’s just inconvenient.