Category : Economics

Economic Intuition: Wotisit?

I recall teachers using the phrase ‘economic intuition’ a lot around my early exposure to the subject. The more I thought about it over the years, the more I wondered what this mystical superpower was. Economic intuition. What the hell is it, exactly? By definition, intuition is the ability to understand or make sense of something without conscious reasoning. An instinctive ability, if you will. This is rather amusing, because a large proportion of economics is about as unintuitive as […]

The economic value of life

In the 1970s, the motoring industry and legal world in the US was subject to the now famous Ford Pinto incident. Through a leaked memo, it was apparently discovered that Ford had realised that there was a design flaw with the car that could cause an explosion upon rear impact. To repair this, so the story goes, Ford could have spent $11 per car, but ultimately decided against it because it would have proven more expensive than any legal damages […]

Religion by Numbers

I tend to shy away from discussions of a religious nature, because there is usually not much objective information exchanged. The only way, I say to myself, that I would touch the topic, is if there was actually some evidence that was not purely subjective or opinion-oriented in nature. However, I thought of an empirical question that interested me: does being religious and actively engaging in religious activity actually make people any better off in terms of their wellbeing than […]

Understanding Selection Bias

Measuring the effect of an intervention, or ‘treatment’, is essential to the scientific method. It helps us to separate real relationships from spurious ones. But there are some pitfalls that cloud our ability to see the true effects of a treatment. Let’s try to understand these pitfalls using an explicit example. Suppose that we want to test the impact of a new fangled weight loss pill that has been released in only one town. The pill was only available at […]

My kingdom for a toasted baguette

As you might imagine, I was quite miffed when everyone’s favourite campus sandwich shop stopped offering to toast your baguette for you. Apparently this was because the toaster oven broke, and they found they could serve 100 or so more customers in total (per day I believe). From the firm’s point of view, it’s clear that they can make more money if they sell more sandwiches. It seems like a no brainer. But it’s not so clear how it’s affecting […]

Film vs digital: another case of the nudge

I’ve read a lot of stuff about photography lately. One argument that keeps popping up, especially with older photographers, is that they prefer traditional film cameras to modern digital cameras. What reasons do they come up with for this? Although some prefer the colours and grainy feel of older photos, most reasons boil down to some sort of nostalgia factor. Those of you below a certain age threshold may not have used or even seen a film camera. So what […]

Sticking with your ‘own kind’

My cousin and I both share the view that choosing friends or associations based on group attributes rather than individual attributes is a dangerous idea when aggregated. Rather than choosing to associate with others based on common interests, ideas, personality matches etc, there are many people that have a tendency to forge ties based on some stereotypical or socially constructed rule. The most obvious of these rules seems to be to gravitate around others of similar race or religion, though […]

Framing Mario

  Whilst watching a Mike Matei video on Super Mario 3D World (apparently the best game around at the moment), I noticed that he was hitting on a nerve. Watch the video above to listen to his argument. In summary, he is unhappy that after a few failed attempts at completing a level, you are given the option of using a ‘White Tanooki Suit’. This allows you to effectively become invincible for the rest of that level, taking all of […]

Are we imprisoned by growth?

Economic growth and technological progress have brought us many privileges, especially in the last 200 years or so. Inventions like computers and the internet have indeed completely changed the face of the world. But we owe a lot to ideas such as specialisation of labour. The modern economy has basically evolved from a series of fragmented (and primarily self-serving) tribes into a giant machine with many gears to be oiled and turned. The idea is that each individual has turned […]

Kahneman’s Cabs: Solving Probability Puzzles

In 1981, Daniel Kahneman, along with his long-time sidekick Amos Tversky, wrote a study about a very smart experiment they did that exposed the lack of attention people give base-rates in quick mental probability calculations. It is now quite famous, and you might come across it in a mathematics, economics or psychology course these days. The Experiment A cab was involved in a hit and run accident at night. Two cab companies, Green and Blue, operate in the city. You […]

Necessarily Sufficient or Sufficiently Necessary?

The best way to remember things, at least I find, is by association. If something reminds you of something else and you can make the mental chain that links them together when you come across something, you can easily recall what you need to. I’m sure those guys that can memorise decks of cards will tell you the same thing. Something that comes up a lot in economics, maths and anything else that involves some form of logical statement is […]

Lines of best fit: how to derive the simple OLS estimators

If you ever encounter some data in your life, you’re likely to come across a scatter diagram, which plots two variables against each other. You’re also quite likely to see a ‘line of best fit’ going through those points, which describes the apparent trend or correlation between the two variables, as suggested by the data points you’ve observed. It’s quite possible that in your early school days, you had to draw a line of best fit through some data by […]