Monday, March 31, 2014

Book review : The Wealth of Nations - Adam Smith

Adam Smith was an economist in 17th century England who gave groundbreaking ideas in economics, contrary to the popular opinion at the time.

He wrote 5 volumes on economic policies that determine the wealth of a nation. The basic ideas in those volumes are valid even today. The principles given in the book like GDP are used in evaluating the welfare of a modern nation.

The most groundbreaking idea of Smith was defining the wealth of a nation. In Smith's time it was popular opinion that the wealth of a nation is the amount of the gold and silver (precious metals) in the King's coffers. So nations in that era restricted import of goods/services from outside to prevent the outflow of precious metals from the country. This type of thinking was so strong that nations restricted even their colonies from trading with other nations. Smith theorized that the wealth of nation is not the amount of precious metals but the labour/goods those precious metals command. So, it would be beneficial for an industry to concentrate it's effort on producing goods that it makes efficiently and import whatever it cannot make efficiently from others.

In the first and second volume Smith talks about division of labour and how concentration of capital is necessary for a nation to build up industries. Even though Smith apparently advocates policies that favour concentration of capital (but also more competition) he explains how this would ultimately lead to welfare of the typical citizen.

In volume 3 Smith talks about policies that favour competition and increase the wealth of a country. Book IV appraises different theories of economics in the light of all these considerations. Book
V then identifies the proper role of government, the principles of taxation, and the impact of government on the economy.

Eamonn Butler here provides an excellent condensation of the 5 tomes.

Tuesday, March 4, 2014

Living with lazy flatmates

Instructions to get water at night in my home -

  1. Get to the Kitchen
  2. Open the microwave
  3. Find a glass for water
  4. Find the tap and get water
  5. Close the microwave
  6. Go back to sleep.
Why the microwave ? Because nobody wants to go to Walmart, which is 15 mins away from work, to get another tube-light. 

Why are manhole covers round?

The normal answer to this question would be because every projection of the circular manhole cover on the hole would be equal to its diameter, thus preventing it from falling inside, unlike say a square or an equilateral triangle or a pentagon.

But there are certain assumptions in that question which are not clear. The first answer, that occurred to me, was that it would be easier for the manufacturers to make circular holes. If you are Indian I can almost guarantee that this logic would sound more sound to you than the earlier one. Because... why would a manufacturer who gets a government contract to make manholes for public roads care about the utility of the product to the public or maintenance workers?