Latest / How Canadian Markets Work / Episode 21: What GDP Measures (And What It Leaves Out)
Transcript
- 0:00Have you ever looked at a news alert flashing
- 0:02on your phone, reading something like, you know,
- 0:06economy booms, growth hits 2%. Oh, I think we
- 0:08all have, yeah. Right. And then you look at your
- 0:10actual life, your grocery bills, your rent, and
- 0:13you just think... Who exactly is this economy
- 0:16booming for? Yeah, that feeling of profound disconnect
- 0:19is incredibly common. It really is. And that
- 0:22feeling is exactly why we are digging into a
- 0:26stack of financial white papers and economic
- 0:28explainers today. Our mission for this deep dive
- 0:32is to decode gross domestic product. Also known
- 0:36as GDP. Exactly, GDP. Because right out of the
- 0:39gate... Our sources highlight this mathematical
- 0:43paradox that perfectly captures that feeling
- 0:45of disconnect you get when you read the news.
- 0:47It's a fascinating paradox, really. We are going
- 0:49to look at how it is mathematically possible
- 0:51for an economy to grow by 2%, but the people
- 0:54living inside that economy actually become poorer.
- 0:57Yeah, and it often feels like there must be some
- 1:00kind of data manipulation happening behind the
- 1:02curtain when those two realities collide. Right,
- 1:05like someone is rigging the numbers. Exactly.
- 1:08People naturally assume an expanding economy
- 1:11equates to rising purchasing power. But the divergence
- 1:15between a booming headline and a shrinking wallet
- 1:18is, well, it's just simple arithmetic. Just arithmetic.
- 1:21Yeah, and it's one of the most fundamental misunderstandings
- 1:24about economic data. Unpack this arithmetic for
- 1:27me, then, because when the newspaper says the
- 1:29economy is growing, I naturally assume the average
- 1:32person's financial situation is improving. How
- 1:34does a math prove otherwise? Well, let's imagine
- 1:38a hypothetical economy that produces, say, $100
- 1:41billion of output in a single year. OK, $100
- 1:43billion. And then the following year, it produces
- 1:46$102 billion. So there's your 2 % growth. Exactly.
- 1:50The newspapers are entirely accurate to report
- 1:52an expanding economy. But in that same year,
- 1:56let's say the population of that country grows
- 1:58by 3%. Oh, I see where this is going. Right.
- 2:00You have more total output. but you have an even
- 2:03larger number of people sharing that output.
- 2:05So the output per person actually fell by roughly
- 2:071%. Wow. So both statements are entirely true
- 2:11at the exact same time. The overall economy grew,
- 2:14but the average person's share of that economy
- 2:16shrank. You've got it. That's exactly it. But
- 2:19we almost never hear that second number. We just
- 2:22hear the 2 % growth and wonder why we feel broke.
- 2:25So if the math is that rigid, we need to establish
- 2:28what this massive metric is actually capturing
- 2:31before we can even interpret those headlines.
- 2:34That's a great place to start. When a government
- 2:36says it produced $100 billion of GDP, what actually
- 2:40goes into that bucket? Well, the sources define
- 2:43GDP as the total market value of all final goods
- 2:47and services produced within a country in a given
- 2:49period. That sounds like a bit of a mouthful.
- 2:52It is, but every single word in that definition
- 2:54acts as a very strict filter. For instance, market
- 2:57value means it only counts things with a price
- 3:00tag attached to them. Measured in dollars, right?
- 3:02Right, measured in dollars. If money doesn't
- 3:04change hands, the activity is completely invisible
- 3:06to the statistical agencies. So if market value
- 3:09is the primary trigger, what prevents the government
- 3:12from double counting? Like, if I buy raw lumber
- 3:15from a mill, use it to build a dining table,
- 3:17and then sell that table to my neighbor, isn't
- 3:20the statistical agency counting the value of
- 3:22the wood twice? That is exactly where the phrase
- 3:25final goods comes in. The statistical agencies
- 3:29have to be meticulous about tracing supply chains
- 3:31to avoid artificially inflating the size of the
- 3:35economy. Oh, so they only count the end product.
- 3:37Exactly. They only capture the end of the line
- 3:39for any product or service. The value of the
- 3:42raw lumber is already baked into the price of
- 3:44the dining table you sold. That makes sense.
- 3:46If they counted the mill's sale and your sale,
- 3:49the data would suggest more wealth was created
- 3:51than actually exists. It requires an enormous
- 3:54amount of data collection to isolate just that
- 3:57final transaction. It seems like geography plays
- 3:59a huge role here too, right? Because the definition
- 4:02specifies within a country. It's a crucial distinction,
- 4:06yes. So if a foreign -owned auto manufacturer
- 4:08operates a plant in Ontario, does that mean all
- 4:11of that production counts toward Canadian GDP?
- 4:14even if the profits flow back overseas. It absolutely
- 4:17does. It belongs entirely to Canada's GDP. The
- 4:21metric is concerned with where the physical or
- 4:23economic activity is taking place, not whose
- 4:25passport the CEO holds. Wow. Okay. And conversely,
- 4:29if a Canadian bank operates a massive branch
- 4:32network down in Mexico, None of that activity
- 4:34counts toward Canadian GDP. Because the labor
- 4:37and the transactions are happening on Mexican
- 4:39soil. Exactly. So it bolsters Mexico's economic
- 4:42data, not Canada's. Got it. Now, there is an
- 4:45expenditure formula the sources outline for how
- 4:48all this activity is tallied up. It's consumption
- 4:51plus investment plus government spending plus
- 4:53exports minus imports. That's the classic formula,
- 4:56yes. And adding up consumer purchases, business
- 4:58investments, government spending, and our international
- 5:00sales. That makes intuitive sense to me, but
- 5:04the subtraction of imports always confuses people.
- 5:07Oh, it's a very common point of confusion. Oh,
- 5:09it's a very common point of confusion. I've heard
- 5:11politicians use this formula to suggest that
- 5:14imports are actively destroying our wealth. Why
- 5:17are we penalizing the economy for buying foreign
- 5:20goods? Well, subtracting imports is not a moral
- 5:23judgment or an economic penalty for that matter.
- 5:27It is purely arithmetic housekeeping. Housekeeping?
- 5:30How so? Think about how massive and complex modern
- 5:34supply chains are. When statistical agencies
- 5:37measure total consumption, they're looking at
- 5:39aggregate data. They're looking at everything
- 5:41households bought. OK. So if you bought a car
- 5:44imported from Germany. That purchase is sitting
- 5:46right there in the domestic consumption bucket.
- 5:49Oh, because the government can't possibly go
- 5:50through every single cash register receipt in
- 5:52the country and separate the domestic apples
- 5:54from the imported oranges. Exactly. The sheer
- 5:57volume of transactions makes that impossible.
- 6:00So they simply add up all consumption, all investment
- 6:02and all government spending, completely agnostic
- 6:04of where the items originated. And then what?
- 6:07Then, at the very end of the equation, they subtract
- 6:10the grand total of all imports. It simply removes
- 6:13the value of things that were produced somewhere
- 6:15else. So we are left only with what was produced
- 6:18domestically. You've got it. It's just a mathematical
- 6:21correction to ensure we aren't taking credit
- 6:24for German manufacturing. Okay, so it's a filtering
- 6:26mechanism, not a punishment. That makes perfect
- 6:29sense. Yeah, it's just math. But if the math
- 6:31is that strict about counting every final good
- 6:34and geographic border, how do we still end up
- 6:37with headlines that feel completely divorced
- 6:39from reality? Well, that's where things get interesting.
- 6:42It just seems like there's a gap between counting
- 6:45the money and feeling the wealth. I keep seeing
- 6:47the term real GDP in the headlines. If there's
- 6:50a real GDP, does that imply the 2 % growth number
- 6:53I just read was fake? That is a great question.
- 6:56You are touching on the inflation illusion. The
- 6:59inflation illusion? Yeah. Nominal GDP is the
- 7:02economy measured at current prices. Let's go
- 7:04back to your furniture example. Suppose a simplified
- 7:07economy produces 100 dining tables a year. selling
- 7:11for $1 ,000 each. Okay, so nominal GDP is $100
- 7:15,000. Exactly. Now the next year, the economy
- 7:18produces the exact same number of tables, 100.
- 7:22But inflation hits, and the price of each table
- 7:24rises by 10 % to $1 ,100. So nominal GDP just
- 7:29rose by 10 % to $110 ,000. Right. But nothing
- 7:33new was actually created. Society didn't get
- 7:36richer, things just got more expensive. Precisely.
- 7:39If you only look at nominal GDP, you would think
- 7:42the economy just experienced a massive boom.
- 7:45But the actual tangible output didn't change
- 7:48at all. And that is why economists rely on real
- 7:51GDP. Yes, real GDP attempts to strip out the
- 7:55inflation. To do this, statistical agencies have
- 7:58to build massive, complex baskets of goods, track
- 8:02prices across thousands of stores over time,
- 8:04and create what's called a GDP deflator. That
- 8:07sounds exhausting. It is an incredibly difficult
- 8:09process, but it's the only way to know if a country
- 8:11is actually producing more stuff or just charging
- 8:14more for the same stuff. Right. But that adjustment
- 8:16solves the inflation illusion. It doesn't solve
- 8:18the population illusion we talked about at the
- 8:20very beginning. No, it doesn't. The divergence
- 8:22between. total GDP and per capita GDP. I always
- 8:27visualize this like a pizza sitting on a table.
- 8:30A pizza is a perfect analogy here. Right. So
- 8:33total GDP is the aggregate size of the whole
- 8:35pizza. If the pizza gets 2 % bigger and you're
- 8:38the government looking at your total tax base,
- 8:40you are thrilled. Oh, absolutely. A bigger aggregate
- 8:43pizza means more total resources for the country,
- 8:46more geopolitical weight, and more capacity to
- 8:49fund national projects. But if you're an individual
- 8:52sitting at that table, a bigger pizza doesn't
- 8:55guarantee you a bigger meal. No, it doesn't.
- 8:57If the pizza grew by 2%, but suddenly there are
- 8:593 % more people pulling up a chair to eat it,
- 9:02your individual slice just got smaller. Exactly.
- 9:05And that's per capita GDP, right? The output
- 9:07per person. The pizza grew, but your dinner shrank.
- 9:09That's spot on. Total GDP measures the aggregate
- 9:13size of the machine. But per capita GDP is the
- 9:16true proxy for the average person's material
- 9:19circumstances. It's what people actually feel.
- 9:22Yes. And when a country experiences significant
- 9:25population growth, those two numbers can point
- 9:27in opposite directions for extended periods of
- 9:30time. This divergence is actually a profoundly
- 9:34significant debate in places like Canada right
- 9:36now. Oh, really? Yeah. You have periods where
- 9:39the total economy is technically expanding, avoiding
- 9:43a traditional recession, but GDP per capita is
- 9:46flat or actively declining. So the whole pizza
- 9:49is growing, but the slices are shrinking. Exactly.
- 9:52And the political arguments surrounding this,
- 9:55debates over immigration targets, housing policy,
- 9:57capital investment, and labor productivity, they
- 10:00are highly contested. I can imagine. Reasonable
- 10:02experts disagree fiercely on the policy solutions.
- 10:05But the underlying arithmetic remains absolute
- 10:08fact. total output and per capita output are
- 10:11telling two very different stories about living
- 10:13standards. And when you take all this mathematical
- 10:15complexity and try to package it for public consumption,
- 10:18you run into the actual reporting mechanics.
- 10:20Which is a whole other challenge. The sources
- 10:22highlight that looking at the raw data is completely
- 10:24different from reading a news alert, especially
- 10:27depending on where you live. Canada actually
- 10:29has a very unique quirk in how it releases this
- 10:33data to the public. Yes, Canada is quite unique
- 10:36in this regard. Most countries in the world,
- 10:38including the United States, only publish their
- 10:41GDP data on a quarterly basis, so every three
- 10:44months. Because gathering this data is incredibly
- 10:46expensive and resource intensive. Oh, hugely
- 10:49expensive. But Canada is highly unusual because
- 10:51it invests the resources to publish GDP monthly,
- 10:54and it breaks it down by specific industry. Does
- 10:57a month -to -month view really offer that much
- 11:00of an advantage? It does, actually. It gives
- 11:01you a much finer -grained, almost high -definition
- 11:04picture of the economy. In a quarterly system,
- 11:08a severe economic contraction in January can
- 11:10be completely masked by a surge in March. Leaving
- 11:14you with a headline that just suggests a mediocre
- 11:16stable quarter. Exactly. But with Canada's monthly
- 11:20data, analysts can pinpoint economic shifts in
- 11:23near real time. You can see if mining output
- 11:26fell in the exact same month that residential
- 11:28construction rose, rather than waiting three
- 11:31months for a blurred snack shot. So armed with
- 11:33that high -definition view, the sources provide
- 11:35a really brilliant three -point checklist for
- 11:38anyone trying to decipher economic news. The
- 11:40very handy checklist. The next time you see a
- 11:42GDP headline, you should ask yourself three questions.
- 11:45Number one, is it real or nominal? Because if
- 11:49it's nominal, it might just be inflation masquerading
- 11:51as growth. Right. Number two, is it total or
- 11:54per capita? Did the pizza get bigger or did your
- 11:57slice get bigger? Also crucial. And number three,
- 12:00is it a quarterly change or an annualized rate?
- 12:03The sources spend a lot of time on this annualized
- 12:06trap, and it seems to artificially inflate how
- 12:09we perceive economic momentum. It really does.
- 12:12Statistical agencies often take a single quarter's
- 12:15growth. Let's say the economy grew by a modest
- 12:170 .5 % over three months. Instead of just reporting
- 12:20the actual 0 .5%, they express it as the annual
- 12:25rate it would produce if that exact pace was
- 12:28sustained for an entire year. So they multiply
- 12:30it roughly by four and report it as 2%. annualized
- 12:33growth exactly that feels like having one really
- 12:36good week at the gym like I eat a salad I hit
- 12:39the treadmill three times and I project that
- 12:42out and tell myself I'm gonna be an Olympic athlete
- 12:44by December that is a wonderful way to look at
- 12:47it it's assuming a massive trend based on a tiny
- 12:50sample size it is and the danger is that this
- 12:53reporting quirk catches journalists and commentators
- 12:55constantly a headline will Blair economy surges
- 12:592 % when in reality It only grew a fraction of
- 13:03a percent that quarter. So it's expressing a
- 13:04quarterly reality in yearly terms. Right. You
- 13:07think the economy is galloping when really it
- 13:09just took one moderate step forward. And this
- 13:12completely ignores the reality of data revisions.
- 13:15Oh, the revisions. The idea that the numbers
- 13:17are changed after they are reported is fascinating
- 13:19to me. Are these just minor tweaks or fundamental
- 13:23shifts in the narrative? They can be substantial.
- 13:26Initial GDP estimates are based on incomplete
- 13:28data. Statistical agencies have to rely on surveys
- 13:32and early indicators to rush the release out
- 13:34while it's still news. Sure. But months later,
- 13:37as more comprehensive corporate tax data and
- 13:39actual business filings roll in, they revise
- 13:42the numbers. A quarter that was initially reported
- 13:45as strong growth can be revised down to a contraction
- 13:47months later. But by that time, nobody is paying
- 13:50attention to the correction, right? Exactly.
- 13:53The stock market and the political discourse
- 13:54react to the first flawed number and largely
- 13:57ignore the accurate history. So my Olympian gym
- 14:00week actually gets revised down months later
- 14:02to me just buying a new pair of running shoes
- 14:04and sitting on the couch. But society has already
- 14:06moved on. Yes, society has entirely moved on.
- 14:09Well, we've established how GDP is measured,
- 14:11the mechanics of inflation. and the reporting
- 14:13traps. But honestly, the most compelling part
- 14:16of this deep dive for me is looking at what this
- 14:19ultimate economic scorecard fundamentally fails
- 14:22to capture. The blind spots. Yes, the blind spots.
- 14:25The things GDP completely misses are arguably
- 14:29more important than what it actually counts.
- 14:31It comes back to that very first rule. It only
- 14:35measures market transactions. And this leads
- 14:37to what the sources call the unpaid work paradox.
- 14:41If you and your neighbor each cook dinner for
- 14:44your own families, clean your own homes and care
- 14:47for your own children, the GDP effect of that
- 14:50immense amount of labor is exactly zero. Economically
- 14:53speaking, according to the metric, nothing of
- 14:56value happened. Which is wild. But if you cook
- 14:58dinner for your neighbor's family and your neighbor
- 15:00cooks dinner for your family and you both hand
- 15:02each other a $50 bill for the service, suddenly
- 15:05GDP just went up by $100. Exactly. It is the
- 15:08exact same amount of food, the exact same amount
- 15:10of human effort, but because you introduced a
- 15:12market transaction, it counts as economic growth.
- 15:15It really highlights the absurdity of the metric
- 15:17when applied to human life. A massive foundational
- 15:20sector of human effort is entirely invisible.
- 15:23Like child care and elder care. Yes. Child care
- 15:26provided by parents, elder care provided by families,
- 15:28community volunteering. If a parent leaves a
- 15:31salary job to raise a child at home, GDP actually
- 15:34falls. Even though society is gaining an immense
- 15:37benefit. Exactly. An unpriced benefit. but a
- 15:41benefit nonetheless. The economists who created
- 15:43GDP in the 1930s, like Simon Kuznets, were dealing
- 15:47with the Great Depression. Right. They were hyper
- 15:50-focused on industrial output, manufacturing,
- 15:53and getting people back to waged work. They knew
- 15:55unpaid labor was valuable, but they couldn't
- 15:58figure out a reliable way to price it, so they
- 15:59just left it out. We base our entire political
- 16:02success on a number that completely ignores the
- 16:05unpaid labor -keeping society functioning. But
- 16:08it gets even darker when you look at the disaster
- 16:10paradox. Oh, the disaster paradox is quite something.
- 16:13Wait, hold on. I want to make sure I understand
- 16:14this. You're telling me if a hurricane wipes
- 16:17out a trillion dollars of coastal housing, the
- 16:20government's economic scorecard actually goes
- 16:22up. Yes. That can't be how the math works in
- 16:25reality. Doesn't the loss of the houses register
- 16:27anywhere? It does not register in GDP. This is
- 16:31known in economics as the broken window fallacy.
- 16:35GDP measures the flow of economic activity. not
- 16:38the stock of wealth. When the hurricane destroys
- 16:41the city, the loss of wealth is immense. But
- 16:44when the rebuilding effort starts paying construction
- 16:47crews, buying new lumber, pouring new concrete,
- 16:51All of that labor and material represents market
- 16:54transactions. So the disaster actually raises
- 16:57measured GDP because it forces a massive surge
- 17:00in spending just to get back to the starting
- 17:02line. It just measures the rebuilding, not the
- 17:04destruction. Exactly. It does not measure the
- 17:06opportunity cost. what that money could have
- 17:09been spent on to actually improve society if
- 17:11it didn't have to be used to replace what was
- 17:13destroyed. That is staggering. A metric that
- 17:16rewards a society for suffering a catastrophe.
- 17:18And this lack of nuance applies to government
- 17:21services too, right? Yes, it does. If things
- 17:23like a public court system or national defense
- 17:25or public health inspections don't have a market
- 17:28price like, you can't buy a court verdict off
- 17:30a shelf, how does the statistical agency measure
- 17:33their contribution to the economy? Because there
- 17:35is no market price. to gauge the value of those
- 17:38services. Statistical agencies value them at
- 17:41cost. At cost? Yes. Whatever the government spends
- 17:44to provide the service is assumed to be the economic
- 17:47value of the service. Wait. So if a government
- 17:49department is incredibly inefficient and spends
- 17:52twice as much money to provide the exact same
- 17:55quality of public health inspections, GDP mechanically
- 17:58goes up. That's exactly right. Simply spending
- 18:01more money mechanically increases measured output
- 18:04in that sector, regardless of whether the service
- 18:06actually improved or whether the public got any
- 18:09real benefit from the extra spending. There is
- 18:12no qualitative assessment at all. None whatsoever.
- 18:15If we synthesize all of this, the core takeaway
- 18:17is pretty sobering. We took an arithmetic tool
- 18:20designed in the 1930s to measure industrial output
- 18:23during a depression, and we essentially turned
- 18:26it into a religion. That's a very accurate way
- 18:28to frame it. GDP has no moral compass. It measures
- 18:32activity. It does not measure benefit. It counts
- 18:34the transaction. It doesn't care about the outcome.
- 18:36It's completely blind to human well -being. It
- 18:40was never designed to measure human well -being.
- 18:42income distribution or environmental sustainability.
- 18:45In fact, Simon Kuznets explicitly warned the
- 18:49U .S. Congress in the 1930s against using his
- 18:52metric as a measure of national welfare. He warned
- 18:55them. He did. He argued that the welfare of a
- 18:58nation can scarcely be inferred from a measurement
- 19:01of national income. And yet that is exactly what
- 19:04modern politics has done. The next time you are
- 19:07scrolling on your phone and you see a headline
- 19:09screaming about a booming GDP, you are going
- 19:12to view it through an entirely different lens.
- 19:14I certainly hope so. You are going to ask is
- 19:16this real or nominal? Am I looking at actual
- 19:19growth or just inflation? You're going to ask
- 19:21is this total or per capita? Did the whole pizza
- 19:24get bigger or did my individual slice get bigger?
- 19:27Crucial questions. And you're going to check
- 19:29if some journalist fell for the annualized trap,
- 19:32multiplying a single good week at the gym into
- 19:34a year of Olympic glory. And most importantly,
- 19:38you're going to remember the blind spots. The
- 19:40things that truly matter. Yes, you're going to
- 19:43remember that GDP is completely blind to the
- 19:45unpaid laborer holding our homes together and
- 19:48that it perversely rewards the cost of rebuilding
- 19:51after a disaster. It is a profoundly powerful
- 19:54number for central bankers and policymakers,
- 19:57but it only answers the specific question it
- 19:59was designed to ask. It tells you how fast the
- 20:02economic engine is running. But nothing else.
- 20:04Right. It tells you absolutely nothing about
- 20:06whether the car is driving in a direction that
- 20:08actually benefits the passengers. Which brings
- 20:11me back to where we started. That feeling of
- 20:13disconnect between the headline and your reality.
- 20:16Now you know why. The headline is measuring the
- 20:19aggregate output of the machine, but you are
- 20:21living in the unmeasured nuance. Beautifully
- 20:23put. I want to leave you with a final thought
- 20:25today. Something to mull over on your own that
- 20:28builds on all of this. If GDP is so fundamentally
- 20:31flawed at measuring actual human wellbeing, if
- 20:34it completely ignores the massive value of unpaid
- 20:37labor and literally rewards society for experiencing
- 20:40disasters, what would our world look like if
- 20:43governments adopted an alternative metric? It's
- 20:46a fascinating thought experiment. Imagine if
- 20:48global policy wasn't driven by GDP but by something
- 20:51like a genuine progress indicator, a metric that
- 20:55actually assigned a positive dollar value to
- 20:57long -term environmental sustainability, a metric
- 21:00that assigned economic weight to a parent staying
- 21:03home to raise a child, or a neighbor caring for
- 21:05an elderly friend. It would change everything.
- 21:07It really would. How would that entirely reshape
- 21:11what our political leaders prioritize if the
- 21:13scorecard they were trying to win actually reflected
- 21:15the things that make a life worth living?