The Hidden Global Public Goods Puppet Masters Who Really Runs the Global Economy?

Discover how superpowers shape global public goods! Hegemonic stability theory through stories of British & American economic dominance. Engaging IB Economics.

IB ECONOMICSIB ECONOMICS MICROECONOMICSIB ECONOMICS SLIB ECONOMICS HL

Lawrence Robert

12/11/20258 min read

IB Economics Global Public Goods
IB Economics Global Public Goods

Global Public Goods Puppet Masters: Who Really Runs the Global Economy?

Right, so here's a question that's been keeping some people up at night. And I mean properly up at night, like scrolling through their phones at 2 a.m. wondering about the meaning of existence.

Who do you think actually runs the world economy?

I don't mean the Illuminati or some bloke in a shadowy boardroom stroking a white cat. I mean, who's actually keeping your iPhone affordable, making sure you can get that Korean skincare routine delivered to your door on time, and preventing the entire global economy from collapsing like a house of cards in a hurricane?

Today I thought we could cover "global public goods" and hegemonic stability. And yes, I know that sounds like something a politics or a history teacher would drone on about after lunch, but understanding this might just explain why your generation is inheriting the economic world it has, and what might happen next.

Let's go back to the year 1880, and Queen Victoria is on the throne. Britain basically rules the world - not just politically, but economically. They've got this thing called the gold standard sorted, they're pushing everyone to trade freely, and European tariffs are sitting at a nice, reasonable 9 to 12 percent.

Britain wasn't doing this out of the goodness of their imperial hearts. They were doing it because it made them absolutely loaded.

Imagine you're the best footballer at school. You want everyone to play football all the time, right? Because you know you'll win. That's essentially what Britain did with the global economy. They were the most productive, so they wanted everyone trading freely because they knew in the end they'd come out on top.

But then something happened that economists call "imperial overstretch." Basically, Britain got a bit too big for its boots. By 1890, their relative power was waning. Suddenly, those nice European tariffs shot up to 18 percent. Wheat tariffs? up through the roof - 40 percent.

Now, you might be thinking: "Hang on, why does one country need to be in charge? Can't everyone just... cooperate?"

The Free Rider Problem (Or: Why Your Group Projects Always Go Wrong)

You know that feeling when you're doing a group project, and there's always one person who does absolutely nothing but still gets the credit? Economists call this the "free rider problem," and it turns out it doesn't just ruin your coursework - it can make entire global economies collapse.

Running a stable global economy requires what economists call "public goods." Not public like a bus or the NHS, but things that benefit everyone but are expensive to provide and maintain.

Let me give you some examples that might sound boring but are actually quite enlightening when you think about them:

Global Liquidity: This basically means making sure there's enough money flowing around the world so that trade doesn't grind to a halt. It's like being the person at a party who makes sure there are always enough drinks - in this case the party is the entire global economy, and if you run out of drinks, millions of people could lose their jobs.

Keeping Sea Routes Safe: About 90% of everything you buy travels by ship at some point. Your iPhone from China, your clothes from Bangladesh, even that weird energy drink you're probably sipping right now. But who pays to keep pirates away? Who makes sure ships can actually get through?

Preventing Trade Wars: Remember when the US and China were having that massive trade spat a few years back and back in 2025? Someone needs to be powerful enough to either stop these things or absorb the economic damage when they happen.

Being the Market of Last Resort: When everyone else's economy is collapsing, someone needs to keep buying stuff. Even when it hurts their own producers.

All of these things are expensive to provide, and everyone benefits from them. So rationally, every country should want someone else to pay for them. It's the group project problem on a major global scale.

When Everything Went Horribly Wrong

Let me tell you about the 1930s, because it's basically a masterclass in what happens when no one's willing to be the grown-up in the room.

Britain was still the biggest trading nation, but they were "knackered" from World War I. America was the biggest economy, but they were being, frankly, absolutely useless. They refused to join the League of Nations, wouldn't send officials to international conferences, and instead let private bankers represent them - bankers who were more interested in getting their World War I loans repaid than in global stability.

Then came the Smoot-Hawley Act. Now, I know that sounds like a law firm for garden gnomes, but this was serious stuff. America decided to raise import tariffs to their highest levels in history.

What happened next was like economic dominoes, but in the worst possible way. Every country thought, "Right, if America's doing it, we're doing it too." Global trade collapsed. What started as a stock market crash became the Great Depression - the worst economic downturn in two centuries.

What did follow? Mass unemployment and political extremism.

The lesson? When there's no clear leader willing to keep the system running, everything can go spectacularly wrong, very quickly.

America Steps Up (And Why Your Grandparents Had It Good)

After World War II, America finally decided to be the responsible adult. And they did it in style.

They created the United Nations, the IMF, the World Bank, and GATT (which later became the WTO). They launched the Marshall Plan, basically giving away billions to rebuild Europe. By the 1960s, average tariffs were down to 9%, and between 1948 and 1973, economic output in developed countries tripled.

Tripled!

Your grandparents lived through the greatest economic boom in human history, and it happened because America decided to become what economists call a "hegemon" - a dominant power that provides global public goods.

America didn't do this out of pure altruism. They did it because they were the most competitive economy in the world, so free trade benefited them most. It's enlightened self-interest - they made the world better for everyone, but made sure they benefited the most.

The Plot Thickens - Enter the Dragon

Fast forward to today, and we've got a new player in the game: China.

Now, China's rise is unbelievable when you look at the numbers. In 1980, China's economy was smaller than Italy's. Today, 45 years later it's the second-largest in the world and growing fast. Some economists reckon they'll overtake America as the biggest economy sometime in the next decade or two.

First, let's have a quick look at what America's still got going for it:

They've got Silicon Valley, Hollywood, and the world's best universities. Chinese students still flood into American universities, not the other way around. The dollar is still the global currency - when crisis hits, everyone wants dollars, not yuan.

Plus, America has this weird superpower called "cultural soft power." K-pop might be Korean, but the biggest global cultural export is still American - from Netflix to Nike to that little blue bird app that shall remain nameless.

But China? They're building infrastructure across Asia and Africa through their Belt and Road Initiative. They're becoming the world's factory floor for renewable energy. And their middle class is now bigger than America's entire population.

The Million-Dollar Question

So here's what's keeping economists (and probably world leaders) up at night:

What happens if America's relative power declines before China is willing or able to provide global public goods?

Because here's the thing about China - they're not necessarily playing by the same rules. Their economic system is different. Their approach to international relations is different. They might not want to provide the same global public goods that America has been providing.

And that could be... problematic.

Imagine if the person who's been organising all the parties suddenly couldn't be bothered anymore, but the person with the most money to throw parties prefers staying in and doesn't really like most of the people who've been coming to the parties anyway.

Some economists think we might be heading for a "Thucydides Trap" - named after an ancient Greek historian who observed that when a rising power threatens to displace a ruling power, war is often the result. Now, nuclear weapons make actual war less likely, but economic war? Trade wars? Technology wars? Those are already happening.

What This Means for You, Yes you are an IB student, What does all this have to do with You?

Right, because the decisions being made in Washington, Beijing, and Brussels right now are going to shape your economic future in many ways you just don't know it.

Will you be able to study abroad easily? Will your future job depend on global supply chains? Will you be able to afford the lifestyle you want? All of these questions depend, in part, on whether the global economy remains stable and open.

Think about it: your iPhone contains components from dozens of countries. Your university might have exchange programmes with institutions worldwide. Your future career might involve working for a multinational company or in industries that depend on global trade.

If the global system becomes more fragmented - if we end up with competing economic blocs rather than an integrated global economy - your opportunities might be more limited than your parents' were.

The Optimist's Case

History suggests that predictions of American decline have been greatly exaggerated before. In the 1980s, everyone thought Japan was going to take over. Didn't happen. In the 2000s, people worried about European competition. That faded too.

America has this weird ability to reinvent itself. They're leading in artificial intelligence, they're becoming energy independent thanks to fracking and renewables, and they're bringing manufacturing back home. Boston Consulting Group reckons this could boost GDP by $100 billion and create millions of jobs.

Plus, there's something economists call "soft power" that's harder to measure but really important. English is still the global language. American universities still dominate global rankings. When there's a crisis, people still look to American leadership.

And China? They've got their own problems. Demographic decline, environmental disasters, a property bubble that makes 2008 look like a weekend anecdote, and the fact that they're still, technologically speaking, playing catch-up in many key areas.

The Alternative Scenarios

Maybe we don't need a single hegemon. Maybe a "concert of powers" could work - America, China, the EU, maybe India and others cooperating to provide global public goods.

This is happening in some areas already. Climate change action requires cooperation. Managing global financial crises requires coordination between central banks worldwide. The response to the 2008 financial crisis showed that countries can work together when they have to.

International institutions like the WTO, IMF, and World Bank were designed to outlast any single hegemon. They're not perfect - they're slow, bureaucratic, and often ineffective - but they're better than nothing.

Or maybe we'll see the emergence of regional blocs. The EU for Europe, something like ASEAN Plus for Asia, maybe a renewed NAFTA for North America. Not ideal, but possibly stable.

The Questions That Matter

So let me leave you with the questions that really matter - the ones you should be thinking about as you study IB Economics and prepare for your futures (I've covered these questions with my students in class, maybe you can do it to with your colleagues wherever you are):

Question 1: If you had to bet, which country or group of countries do you think will be providing global public goods in 2040? And what does that mean for global prosperity?

Question 2: Are global public goods actually necessary, or could we have a prosperous world economy without a hegemon? What would the alternatives look like?

Question 3: How much should countries be willing to sacrifice their own short-term interests for long-term global stability? And who gets to make that decision?

Question 4: If you were advising the Chinese government right now, would you tell them to embrace the role of global hegemon or to focus purely on their own development? What about if you were advising the Americans?

The answers will shape the world you're inheriting.

The global economy isn't just some abstract system - it's the framework within which your lives will unfold. Understanding how it works, why it sometimes doesn't work, and what might happen next isn't just useful for passing your IB Economics exams.

It might just be essential for understanding your future.

Stay well,