1/ I've been reflecting on why I found @LiaDiBello4's extracted mental model of business so compelling.

I mean, my reaction was mostly: "ALL great businesspeople share a common mental model of business? The model is a triad of supply, demand and capital? YES THIS MUST BE RIGHT."
2/ The model, if you're wondering:
3/ I'm usually more sceptical when I encounter new ideas. Some of my friends remain sceptical about DiBello's paper.

But I think DiBello's triad just fits into everything I know and everything I've read about business. Here's what I mean ...
4/ I think most people who start out in business quickly figure out that the Supply leg is a thing — they learn:

Oh, managing people is hard. Need to learn that.

And hiring is hard. Need to learn that.

Oh, and FIRING people. God, firing people is hard. Need to learn that.
5/ Supply is 'factors involved in effective operations' — meaning you get good at whatever it takes to make the widget, be it manufacturing or ops or product dev.

So far, so straightforward. Then you try to SELL the widget, and that leads you to deal with the Demand leg ...
6/ And in the Demand leg you learn that, god, competition is a thing. You start dealing with competition when you do sales and the customer compares you to equivalents, which starts to give you a sense of the market you're in ...
7/ And then it's usually only a matter of time before you realise that margin compression is a thing.

That is, in many cases your competition will cut prices over a period of years, driving returns down to the opportunity cost of capital. Terrible!
8/ You seek out stories where this happens, and then you realise: ok, wait a minute, there are some businesses that can resist margin compression. How do they do it? And you stumble onto the concept of 'moats'.

Turns out there are only 7 of them:
9/ Digression: you also quickly learn that moat building looks very strange in practice:
10/ So I've just described my learning progression in business.

All of these are obvious things — most people learn that Supply and Demand are things because they realise they have to make a widget to sell the widget, and then they learn all the hard bits of both. But!
11/ If you read a lot of business biographies, you'll begin noticing something strange. There are a whole class of moves in business that allow you to win that AREN'T related to Supply or Demand. Those moves are basically Capital.

My goto story is John Malone's.
12/ Malone was early in realising that junk bonds were a thing, and then realised that he could a) rack up a ton of debt, b) never make a profit c) use that to buy MOAR cable businesses, d) use the cash flows to service debt, and e) use the losses to shelter those cash flows
13/ It's an old story, and it's really cool because Malone invented EBITDA in the process to explain what he was doing. I retell it here: commoncog.com/blog/cash-flow…
14/ Anyway, once you realise that Capital is a thing with its own playbook, you begin to see stories of businesspeople using it everywhere. Here's Michael Dell doing some savvy financial kung-fu to save his company: forbes.com/sites/antoineg…
15/ And you find books like The Outsiders, which is basically a collection of CEOs whose edge is mostly in Capital. (They shore up their Supply and Demand pieces by delegating operational bits to their second in command). goodreads.com/book/show/1358…
16/ Again, this is old hat if you've been in business for a bit, or if you've been an equity investor for any amount of time.

What DiBello's triad mental model confirms for me is that there are JUST three legs to the expertise of business. Before I read her work, I wasn't sure.
17/ Anyway, what this gives you is the shape of the expertise to pursue, if you want to get good at business.

And it gives you a lens to evaluate the mental models of good business people, since the way the triad is expressed is different depending on the industry.
18/ If you want to read the paper where DiBello extracted the mental model, start here: wtri.com/wp-content/upl…

You may also read my blog post on the findings: commoncog.com/blog/business-…
19/ Follow if you'd like more threads like this. Or sign up for my newsletter, where I cover better business and career decision making: commoncog.com/blog/subscribe…

Of the practical sort, not the rubbish 'ooh, have you heard about this mental model?' sort.

Thank you for reading!

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More from @ejames_c

15 Aug
1/ One of my most persistent irritations is with the whole 'OH YOU NEED TO DO DELIBERATE PRACTICE' meme.

Ugh, no, perhaps you don't. It depends on your domain. Deliberate practice has problems. Have you even tried?

I've written about this before, but here's a thread.
2/ First: DP is a real theory, and it's one of the greatest contributions to our understanding of expertise.

It is a technical term. It does NOT mean 'practicing deliberately'. We'll define it soon.

My problems with it stem mostly from trying to apply it, and failing miserably.
3/ Ok, let's define DP. To make things a little complicated, DP is tricky to define because K Anders Ericsson has been inconsistent with definitions throughout his career (see pic, from The Science of Expertise, Hambrick et al).
Read 21 tweets
13 Aug
1/ Yesterday I talked about Cognitive Transformation Theory, a learning theory that tells us that how good you are at learning from the real world depends on how good you are at UNLEARNING mental models.

So: how do prevent yourself from stagnating?

2/ In 1993, Clark Chinn and William Brewer published a famous paper on how science students react to anomalous data — data that clashed with their mental models of the world.

They then drew on the history of science to show how common these reactions are amongst scientists.
3/ It turns out there are basically only 7 ways you can respond to inconvenient data. 6 of them allow you to preserve your existing mental models.

See if any of these are familiar to you, before we go through them in order: Image
Read 19 tweets
12 Aug
US Military, Naturalistic Decision Making researchers: "in order to accelerate expertise, we need to design our training programs to destroy existing mental models"

Good businesspeople: "how can we distill wisdom from the air?"

Everyone else: "u need 2 do DeLiBeRaTe PrAcTiCe!"
Clarification on the 'distill wisdom from the air' bit — that's from Robert Kuok's biography, in reference to the way uneducated Chinese businessmen learn. Mostly by reflecting on experiences and observing widely.
There was a meme sometime back on “what is the deliberate practice of your domain?” With this theory of learning, we can say that the question is ill-formed, because DP can only be done in domains with clear pedagogical development, with a coach who has that pedagogy.
Read 6 tweets
12 Aug
1/ Let's talk a little about how people learn in the real world.

No, I'm not going to talk about classroom instruction, or pedagogical development, or enrolling in a cohort based course. None of that.

Just a simple question: how do people ACTUALLY learn from doing?
2/ The study of learning in real world environments is known as macrocognition.

Fancy name, simple meaning: it just means that these theories aren't constructed by observation of humans in a lab, but are instead formed from real world observation. en.wikipedia.org/wiki/Macrocogn…
3/ The questions these researchers had went something like this: how is it that some people become experts through trial and error, and others do not or cannot?

Sure, it's great if you can take a course, or a coach. You will likely learn faster. But what if you can't?
Read 17 tweets
10 Aug
This week's Commonplace piece is about @johncutlefish's ability to diagnose a product team's issues within 5-20 minutes of talking to them, and what we learnt when we did a tacit skill extraction session together:
commoncog.com/blog/john-cutl…
When John talks to a product team, the call progresses through four stages. The bulk of the magic happens in stage 2 (John intuitively knows what to ask and where to dig), with some leftover awesomeness happening in stage 3 (John gives them an ordered list of experiments to try). Image
A lot of what he does is picking up on tiny cues.

For instance (and also the biggest thing I learnt): good product teams are comfortable with uncertainty, and able to articulate what they know and don't know and are working to find out.

Bad product teams talk about the future.
Read 9 tweets
26 Jul
Had to wait a couple of hours for the update, but, heh — a few minutes ago, judo legend Shohei Ono just won the -73kg gold, with a beautiful throw.

The kicker: he was totally playing the harder game.
At the 2016 Olympic games, where he won gold, he said: "I wanted to prove that a lightweight judoka like me could fight with a decisive, dynamic, strong and beautiful style of judo."

Beautiful means ippons. Not penalties. olympics.com/tokyo-2020/en/…
But Ono is a generational talent.

Most top Judo players have 3-5 techniques they can use at the top level. This means that you can deny them usable grips (which is what Takato did to Yang in the 60kg mens final) to render them ineffective.
Read 6 tweets

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