Sunday, September 25, 2011

History of money

Autarky: Countries are self-sufficient and do not trade with each other

Legal tender: medium of payment recognized by a country's legal system

Troc/Barter
: Exchange of products of similar value (prehistoric Europe)

Problems
:
  1. Valuation: hard to find equivalent between dissimilar products such as, for example, wheat and wood on which all participants to the trade taking place would agree upon (two people won't value the same product the same way based on personal preferences, background, etc);
  2. Timing issue: a cattle herder wanting vegetables has to find a farmer willing to exchange his tomatoes for cattle (if the farmer wants honey, then the herder is screwed! Well, not really, but he has to find someone else...)
  3. Storing: some products such as food cannot be kept for a long time for future purchases

Gold and Silver money: value of currency is defined by intrinsic value and weight of metal used in composition (ancient Greece, Rome and medieval Europe)

Problems:
  1. Through use, the coins could end up loosing part of their metal thus loosing their value (debasing)
  2. Metal could be voluntarily scratched off from the coins in an effort to gain (debasing)
  3. Gold and silver coins could be melted and mixed with alloys and then re-transformed into coins (debasing)
  4. Cumbersome to carry.

Receipts, bills of exchange and promissory notes: paper issued by international bankers upon the receipt of gold or silver coins and convertible back into coins at sight upon presentation of note; primarily used by travelers in order to avoid theft (started in the Xth century in Italy and spread into Europe; still used until the XIXth century)

Banknotes: same concept as promissory notes, though these are issued by banks when one makes a deposit or a loan. Is used as an exchange medium between particulars as an alternative to coins based on the assumption that the note can be exchanged with gold and silver coins at the bank. Basis of today's monetary system and money creation. As notes often circulated for a long time without being reclaimed, a bank could lend more money than it actually had as deposits. (started out in VIIth century China and spread out in Europe in the XIVth century).

Bill of credit: paper issued by governments similar to banknotes. Provincial governments exchange these notes with gold and silver coins in order to pay their obligations (somewhat similar to treasury bills from this perspective). Bearers can then use them to pay taxes (started in XVIIIth century America)

Problems with paper money:
  1. No fixed value and is therefore susceptible to devaluation when a country suffers from inflation.
  2. No intrinsic value and therefore is only useful as long as people have confidence that it will be accepted as a means of payment or that it can easily be converted into gold or silver coins
  3. Banks suffered frequent runs by customers who lost confidence in the value of their notes and who tried to convert them into treasury coins. However, as banks lend a big percentage of their deposits, they don't have sufficient funds to face such a scenario and they would often be forced to declare bankruptcy.
Fiat money: paper issued by an official institution (usually a central bank) and whose value is given by government regulation or law and is not backed up by gold or treasury coins.

In order to solve the confidence crisis, governments assigned the production of notes to a unique official institution (usually a central bank). The time of implementation of this system varied greatly from one country to another. The first central bank was created in Sweden in the XVIIth century, while in Brazil this only happened after World War Two. The purpose of central banks was to restore the public's confidence in the banking system and also to fight inflation. Up until the 1950's (1970's in the case of the US), the notes printed by central banks were still convertible into gold at a predetermined rate. The gold standard was eventually dropped as it imposed many restrictions upon loans and commercial activities and this brought about fiat money.

Electronic money: as with initial bank notes, individuals nowadays rarely retire the full amount of their deposit with a bank. Payments are primarily made through checks or bank transfers. Therefore, deposits are used to make loans which then will be used to make other deposits. This process creates liquidity through banks' electronic recordings on their balance sheets. What's more, with the growing popularity of credit and debit cards, paper money is rarely used anymore and some even predict its extinction in favor of "electronic money".

Friday, September 23, 2011

The day the world stopped making sense

Well I might just be stating the obvious here, but just let me get this out first: WHHHHAAAAATTTTTT???

Alright, moving on.

1 neutrino. 1 experiment. 16,000 runs. 1 conclusion: somewhere along the line, someone screwed up. Now the question is who?

I'm not making much sense am I? Alright, here it is.

One of the most important concepts in modern physics is the fact that the maximum velocity (or is it speed? hmm that does put things into perspective...) that can be reached in the universe is 3 * 10^8 m/s or the speed of light or if you will, the speed reached by a photon in a vacuum. But a recent experiment done at CERN in conjunction with a lab in Italy revealed that when they sent a muon neutrino from one lab to the other, it had arrived 60 ns faster than light would have. And that does not make sense on so many levels. First of all, neutrinos have a mass (albeit a very small one) while photons do not. So inertia would predict that it is impossible to accelerate a particle so as to give it the speed of light because the more it is accelerated, the more massive it becomes, the more it will oppose further acceleration, etc. Also, at the speed of light, time is supposed to stop. Does that mean that by going faster, you go back in time? No, no, no! The faster you go, the more time contracts. But it can't contract more than 0....

So it all boils down to this: either the experiment at CERN was somehow flawed and the results are wrong, either Einstein screwed up and the last 100 years of physics need to be revised. Either way, an institution that I profoundly respect fails (because Einstein is an institution within himself!).

And this has nothing to do with the topic, but did you know that Einstein means "one stone" in German? One stone in the foundation of modern physics? One stone gone astray? One stone traveling through space-time at the speed of light?

Sunday, September 18, 2011

People never learn

You know you have crossed over to the dark side when your idea of a relaxing Sunday night consists of watching a documentary on the 2008 banking crisis.

Leaving that aside, Krach: les dessous de la crise économique mondiale is fairly fascinating as it explains how the crisis came to be. And when you later on read that people at UBS are worried that they won't get their bonuses and that their scandal will cause tighter regulations on the industry, well you're not as surprised that we ended up in this shithole. And let's just say that it'll be a miracle if we don't fall into another economic crisis.

On a lighter note, once it all passes, we can safely laugh about it!



Did you see it? Did you? Did you? Hint: it's the subscript under the Bank of Evil sign towards the end.

Quote of the month

Faites que le rêve dévore votre vie afin que la vie ne dévore pas votre rêve.

Antoine de Saint-Exupéry

Saturday, September 3, 2011

Memories

Sail on the highway, into the darkness, away form the city's many lights, guided only by the starry sky.