Earlier in the thread I quoted a CNN panelist who stated that in a worst-case scenario, much like what we are seeing, the total losses from this event could reach into the hundreds of billions of dollars. I was accused of being unreasonable. At first I intended to start digging for examples of how losses can multiply, but I thought it far easier to just wait for the examples in this case to manifest. We have our first example of a hundred-billion dollar loss.
While a bit ironic in the context of this thread, it is the first directly measurable casualty, and it is BP. BP stock, 38% of which is U.S. owned, has lost half of its value - about 80 billion dollars. Today, with the commitment of 20 billion to the relief fund, they have lost over 100 billion dollars.
http://www.tallahassee.com/article/20100615/BREAKINGNEWS/100615007/BP-stock-has-lost-80-billion-since-oil-spill
Again, while it is a somewhat inverted example of what was intended, it is still an example of the sorts of losses that can spinoff from events like this. One cannot consider only the fishing and tourism industries losses that can be measured directly; the value of which are in the tens of billions of dollars annually for each State, IIRC. We also have to consider the duration of the losses, which may continue for decades in some cases, and secondary and other losses, such as loss of real estate value. How many companies dependent on fishing or tourism will fold? How many companies will suffer losses in stock values? How will this affect trade in the region? While it is impossible to fully anticipate all of the consequences of an event this magnitude, we can be sure that the ramifications from this will be profound, and of long duration. One cannot, in a worst case, dismantle the economy over an entire region of the country, esp a highly productive region like the Gulf coast, and expect anything less.
My best read on this is that we are now at the mercy of the weather. If the weather holds out and we have a relatively calm summer, and if they can get the well under control, maybe the absolute worst case can be avoided. On the other hand, it we have a number of severe storms or hurricanes, which is expected, the biological and financial future of the gulf, and the future of BP, may depend entirely on which way the wind blows. If the oil is driven into the marshes and wetlands by storm surge, or even if we have wind-carried oil coating an entire coastal section of the gulf, it is difficult to even imagine the long-term ramifications. What would be the effect on the economy, for example, if the South suffers a crash in the value of real estate? How would the effects spread throughout the economy; esp during a critical time in our recovery; esp when we are subject to stresses resulting from the European financial crisis? The possibility that the total losses related to this event could be hundreds of billions of dollars, is a no-brainer. And we see that already in the value of BP. Generally, even a relatively small effect on the national economy can results in financial losses that rise to that level.