Well, it’s just easy for me to imagine someone saying “major new illness in China? Sounds bad for the global economy.” It’s harder to imagine them saying that about Mexico.
I’m assuming that it’s easier for a disease to spread within a country than to cross international borders. So it’s more likely to wreak havoc in the economy of a country it’s in already than one it hasn’t yet reached. A virus in Mexico has access to 2% of world GDP. In China it has access to 16%. Much more destructive potential.
GDP follows a power law so there are a few economies—the USA, China, the EU, and Japan, where it matters greatly whether a pandemic is spreading.
From one point of view, maybe spread doesn’t matter. Either a disease has the transmissibility to spread worldwide and evade containment, like COVID, or it doesn’t, like Ebola.
If that were true, only R0 and case fatality rate would be needed to adequately predict the consequences of a disease. It wouldn’t matter which countries the disease was in.
That would be an interesting alternative model, with the virtue of simplicity.
For this model, I tried to pick factors that I think the public and epidemiologists would consider important, including spread and whether it was in bigger more prosperous countries. That may or may not matter for predicting the stock market, but I think it does matter for starting a conversation about a future pandemic, which is the whole point of this project.
Well, it’s just easy for me to imagine someone saying “major new illness in China? Sounds bad for the global economy.” It’s harder to imagine them saying that about Mexico.
I’m assuming that it’s easier for a disease to spread within a country than to cross international borders. So it’s more likely to wreak havoc in the economy of a country it’s in already than one it hasn’t yet reached. A virus in Mexico has access to 2% of world GDP. In China it has access to 16%. Much more destructive potential.
GDP follows a power law so there are a few economies—the USA, China, the EU, and Japan, where it matters greatly whether a pandemic is spreading.
From one point of view, maybe spread doesn’t matter. Either a disease has the transmissibility to spread worldwide and evade containment, like COVID, or it doesn’t, like Ebola.
If that were true, only R0 and case fatality rate would be needed to adequately predict the consequences of a disease. It wouldn’t matter which countries the disease was in.
That would be an interesting alternative model, with the virtue of simplicity.
For this model, I tried to pick factors that I think the public and epidemiologists would consider important, including spread and whether it was in bigger more prosperous countries. That may or may not matter for predicting the stock market, but I think it does matter for starting a conversation about a future pandemic, which is the whole point of this project.
The main reason why COVID-19 is bad for the market and for us in the West is because it wasn’t easily containable.
Whether or not the first cases happens in some Chinese provience or in Mexico doesn’t matter much for that.