|Source: Washington Post|
The graphic is Europe's financial contagion by Neil Irwin. CLICK TO ENLARGE . By clicking on the link, you'll see the so-called PIIGS on the left. Running your cursor over the various countries, you can see loan exposures as well as trade flows as a percentage of GDP. For example, Ireland's loans to Greece amount to 4.6% of GDP. Next, by running your cursor over Ireland, you find that Portugal is its biggest creditor with loans /GDP in excess of 8%. In this way, you can trace a contagion effect of one country's problems affecting others.
Note that the extent of the impacts is illustrated by the thickness of the arrows. DIY Investor is admittedly impressed by people's creativity in presenting data in the internet age.
DIY Investor believes that financial contagion gained prominence in 1997 when Thailand experienced currency problems. Most analysts saw it as a non-event - after all, Thailand is a small country on the global stage. Thailand's problems however quickly spread and eventually affected South America.