Mental Models

Latticework of Mental Models: Contrast-Misreaction Tendency

Do you remember my old friend, Mr. Irrational? He made a cameo appearance in Latticework series when we discussed Mean Reversion.

For the uninitiated, he is a figment of my imagination, inspired by Benjamin Graham’s Mr. Market.

One fine day, it so happened that Mr. Irrational was trying on suits in front of a shop’s three-sided mirror. The men’s tailor shop was owned by Sid and Harry. The younger brother, Harry, being less experienced, was sitting at the back of the room with all the design catalogues and price list.

Sid, elder brother and the chief tailor, who seemed to have hearing problems, was helping Mr. Irrational make a choice.

“How does this one look?” asked Mr. Irrational. He liked the dark grey colour but wasn’t sure about the woollen texture of the suit.

“Pardon me Sir. Can you please speak up little louder?” This was the third time that Sid had requested his patron to speak louder.

Latticework of Mental Models: Law of Diminishing Marginal Utility

“Chocolates!” replied Soham, my nephew, with a glint in his eyes. That was his response to my question “What is happiness?”

“So you think the secret of happiness lies in chocolates?” I quizzed him further.

“Yeah! It’s bliss,” he blurted while going around in circles in his tricycle.

“Bliss?” I thought to myself, “That’s quite a mouthful of adjective coming from a five year old.”

“Okay! Here is a chocolate. Tell me if it makes you happy?”

“Thanks Mamaji (that’s what he calls me),” he screamed as he literally snatched it from my hand and in no time the chocolate was gone. He was ecstatic. May be he was right. Chocolate is bliss.

“So if one chocolate makes your happy, more chocolates should make you more happy. Isn’t it?” I was attempting to play Socratic Solitaire (the tradition of asking question that helps somebody discover the wisdom) with an unsuspecting kid.

Latticework of Mental Models: Critical Mass

This article is the tenth of this weekly series called Latticework of Mental Models, which will be authored by my friend and partner in writing the Value Investing Almanack, Anshul Khare. Anshul will write on various mental models – big ideas from various disciplines – which can help you think more rationally while analyzing businesses and making your stock investment decisions.

It’s said that you can find extraordinary intelligence in nature. To unearth this brilliance, all you need is curious eyes and close observation. In that spirit, let me start today with the story of a Chinese bamboo tree.

Imagine that you were given few Chinese bamboo seeds and asked to grow them. You take the little seed, plant it, and start watering it. You add fertilizer and wait patiently for the seed to turn into a plant. You wait for a whole year, and nothing happens.

The second year you continue to water it and fertilize it, but still nothing happens. Looks like somebody is testing your patience.

The third year you water it and fertilize it, and the same story repeats i.e., no visible results. Many people would have given up on the tree by this time. But not you. At least not in my story.

Latticework of Mental Models: Law of Small Numbers

This article is the ninth of this weekly series called Latticework of Mental Models, which will be authored by my friend and partner in writing the Value Investing Almanack, Anshul Khare. Anshul will write on various mental models – big ideas from various disciplines – which can help you think more rationally while analyzing businesses and making your stock investment decisions.

Outside of the closed glass chambers in the corporate world, there is another very unusual place where grand scheming about workplace strategies (read, office politics) happens regularly. Don’t worry, there is nothing hush-hush about this place and it’s not at all surrounded by thick soundproof walls.

Wondering what I am talking about? Let me give you another hint.

It’s the designated open area in every large company, where people go out in fresh air to fill their lungs with freshly brewed smoke. You guessed it right. I am talking about the smoking areas.

Mind you, it’s not just a place trafficked by the smoke billowing nicotine guzzlers, but you’ll often find those hapless passive smokers too who don’t realize that their lungs are going to collapse sooner than their active smoker buddies.

Latticework of Mental Models: Kantian Fairness Tendency

This article is the eighth of this weekly series called Latticework of Mental Models, which will be authored by my friend and partner in writing the Value Investing Almanack, Anshul Khare. Anshul will write on various mental models – big ideas from various disciplines – which can help you think more rationally while analyzing businesses and making your stock investment decisions.

I was almost at the end of a beautiful evening drive. Refreshing cold breeze gently blowing on my face through the car windows coupled with minuscule traffic was like heaven on earth. Sporting an ear-to-ear smile I felt confident that nothing in the world had the power to take away my inner peace at that moment.

But, as usual, my faithful and ever reliable nemesis, the chaos-monkey, had different plans for me that evening.

Just when I was about to take a smooth turn on a closing traffic signal, a taxi cut me off while overtaking my car. The surprising rash maneuver from the taxi called for sudden brakes and by that time signal had turned red. As a result I missed my turn because of the insensitive driving by the taxi driver.

In the next few seconds, my Buddha smile turned into an angry frown and I was thrown out of my “appreciating the good things in life” mode.

Why did I feel so agitated? Well, for one, I was ahead of the taxi and it was me who was supposed to cross the signal first.

Latticework of Mental Models: Redundancy

This article is the seventh of this weekly series called Latticework of Mental Models, which will be authored by my friend and partner in writing the Value Investing Almanack, Anshul Khare. Anshul will write on various mental models – big ideas from various disciplines – which can help you think more rationally while analyzing businesses and making your stock investment decisions.

What’s your favourite day or time of the week? For somebody like me with a Monday-Friday job, the favourite part of the week usually is Saturday morning.

Now, what could be the best way to ruin a Saturday morning? Let me tell how I (almost) achieved the feat.

On a cool and breezy weekend morning when most people prefer to sit in the balcony and sip on a hot beverage, I was standing just outside my front door with milk packet in hand and toothbrush in my mouth, wondering why do they build these auto-lock doors.

Yes, you guessed it right. I managed to lock myself out of my house. Everything including my keys, glasses, cell phone, wallet, and slippers were behind the door which was slammed shut by the very same saturday morning breeze.

However the story had a happy ending when I was rescued by my saviour. Saviour? Yes and it was none other than our mental model for today – Mr. Red (short for Redundancy).

Latticework of Mental Models: Variable Reinforcement

It’s not often that you would find me exercising my thumb muscles with a TV remote but it so happened that on a Saturday afternoon while killing time in front of the idiot box, an unsettling thought caught me off guard. I realized that I had been surfing through the TV channels for the past hour without really spending more than a minute on any single channel.

This habit is not uncommon but the unusual thing was once I had looped through all the channels a couple of times and once it was obvious that there was nothing interesting on TV, I still kept going without getting bored. So what was keeping me hooked?

As a flash of insight the answer that my mind constructed was an uncomfortable one.

Latticework of Mental Models: Gresham’s Law

This article is the fifth of this weekly series called Latticework of Mental Models, which will be authored by my friend and partner in writing the Value Investing Almanack, Anshul Khare. Anshul will write on various mental models – big ideas from various disciplines – which can help you think more rationally while analyzing businesses and making your stock investment decisions.

Few weeks back, we discussed the mental model of Storytelling. I am going to use the same model to start this post. Let me start with a true story, and take you back to medieval India.

Between the years 1324 to 1351, Delhi was ruled by an emperor named Mohammad-bin-Tughluq from the Tughluq dynasty. He had a scholastic background and spoke multiple languages. In spite of good intentions, some of the policies that he enforced during his rule backfired which made him infamous as an eccentric ruler. One such failed idea was about an experiment that he did with the local currency.

Tughluq noticed that India had very few silver coins and a comparatively larger number of bronze and copper coins. He decided to promote bronze or copper coins by passing a royal order that bronze and copper coins are to be accorded the same value (i.e., same purchasing power) as silver coins. In other words, he wanted the markets to mentally consider bronze and copper as silver itself so that 1 gram coin of bronze can buy the same goods as 1 gram of silver. It looked like a neat idea however the emperor failed to consider the law of unintended consequences.

Latticework of Mental Models: Mean Reversion

This article is the fourth of this new weekly series called Latticework of Mental Models, which will be authored by my friend and partner in writing the Value Investing Almanack, Anshul Khare. Anshul will write on various mental models – big ideas from various disciplines – which can help you think more rationally while analyzing businesses and making your stock investment decisions.

There are certain days in everybody’s life which in spite of being ordinary remain etched in the memory for a long time. It was 15th of December. I distinctly remember it because I bought my car that day.

The ownership of new car brought with it an excitement to take care of it which included an urge to diligently track the car mileage. You know, boys with toys. At an average of 13 km/litre it was a satisfactory performance. However, after few weeks I started noticing that the mileage numbers would go down occasionally and then come back again to the normal.

There wasn’t any change in my driving style or driving routes. Except the source of fuel there was no other variable that could cause the variation in performance. So my hypothesis was that the quality of fuel was affecting my vehicle’s performance. To empirically validate my theory I decided to keep track of different fuel stations where I got the petrol from.

Latticework of Mental Models: Storytelling

This article is the third of this new weekly series called Latticework of Mental Models, which will be authored by my friend and partner in writing the Value Investing Almanack, Anshul Khare. Anshul will write on various mental models – big ideas from various disciplines – which can help you think more rationally while analyzing businesses and making your stock investment decisions.

What if I told you that the DCF (discounted cash flow) analysis and the principle of time value of money was first discovered in 600 B.C.? And the person who discovered it was neither an economist nor a mathematician. He was a storyteller called Aesop.

“You must be kidding,” you might say. Well, let’s find out.

In my personal experience, one of the most effective ways to make a conversation (written or verbal) interesting is to tell a story capturing your idea. In fact, I can safely claim that whenever I hear or read something that starts with “let me tell you a story,” it gets me hooked for at least few minutes. I am sure your experience won’t differ too much from mine.

Even most of the holy texts in different religions contain lot of stories. Questions is, why is it so?