US defense pacts

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The United States is bound by treaty to protect 25% of the world’s population. These defense treaties (displayed in the map above) are comprised of NATO, OAS, ANZUS, and Bilateral agreements with various countries around the world.

SF Bay Area Median Home Price Apr 2017

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Above is a map displaying the median home prices for cities in the SF Bay Area as of April 2017 on Zillow. The most expensive cities in order are: Palo Alto 2.5 million, Cupertino 1.8m, Mountain View 1.5m, Sunnyvale 1.5m, Redwood City 1.3m, San Francisco 1.2m.

Below is a chart displaying the median home price changes for the four largest cities in the Bay Area since Jan 2012. Home prices have doubled in the past five years with cities such as Oakland up 123%, Mountain View up 112%, and Palo Alto up 103% over the period.Screen Shot 2017-06-02 at 10.24.56 AM.png

Political Cartoon Map, 2016

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Above is a cartoon map displaying Europe’s current political climate. Trump re-writing the NATO agreement, the Baltic States pushing back Russian expansion into Eastern Europe, Britain moving further away from the EU after their Brexit vote – what else stands out to you from the map?

Country Exports to the US

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The map above displays each country in the Americas largest export to the United States. It is color coded by various categories listed in the legend. Note that Cuba is grayed out with “No Data” as the US does not trade with them due to the long-standing embargo. Latin America’s two largest economies (Brazil and Mexico) export industrial goods to the US – Planes, Spacecraft, and Cars – while most other countries in South America export natural resources (Sugar, Gold, and Oil). The Caribbean typically exports food products and textiles: bananas, fish, t-shirt, sweaters, etc.

Europe Income Brackets

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Above is a map of Europe color-coded into three income brackets – Dark green: greater than 40k euros per capita, Light green: between 20k and 40k euros per capita, and red: less than 20k euros per capita. Note the values are calculated in Purchasing Power Standards (PPS) a metric used by Eurostat for cross-country comparisons. PPS tires to correct for cost of living and price level differences, especially among nations with different currencies. For comparison to the United States, 40k euros converts to 44k dollars (2017 prices). US GDP per capita is 55k dollars, with the highest continental state: New York at 72k USD and lowest: Mississippi at 35k USD. This means the area’s in dark green in the map above (among the highest in Europe) would rank on the lower end of US states, around 40th out of 50.

Total World Wealth, 2016


Wealth is a different concept than income. Income is what you earn with your labor (your job) and wealth is the assets you own minus your liabilities (or debt). Said differently, the accumulation of income and property passed from generation to generation over time is wealth. Income inequality has been growing in the United States over the past 30 years and is a hot button issue, but wealth inequality is a different and even more extreme situation – especially at the global level: The richest 1% of adults in the world hold 50% of global wealth, while the top 10% hold 85%!

The total wealth of the world is estimated to be $255 trillion dollars by Credit Suisse in 2016. Of this, $84 trillion (33%) was located in the United States. Other wealthy countries include: Japan $24 T, China $23 T, UK $14 T, Germany $12 T, and France $11 T. One way to picture this distribution is with the map above colored in three tiers – The US has 1/3 of world wealth, Japan-China-UK-Germany-France combined have 1/3 of world wealth, and the remainder of the world, some 188 countries, have 1/3 of world wealth.

What are the assets that make up this wealth? Real estate is a large fraction of the total. Numbers are difficult to find but of the $84 trillion dollars of wealth in the US, $27 T (32%) of the value was real estate (2014 estimate). Another large fraction is located in financial assets: ownership of stocks, bonds, etc. This market is also concentrated with stock exchanges in the United States or Europe representing 80% of the global allocation of mutual fund assets.

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China’s Population Density

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Only about 30 percent of China’s landmass is habitable with approximately 40% of it’s land covered by mountains (in the southwest) and an additional 25% deserts (in the northwest). The maps above display that 94% of China’s population lives on the eastern side of it’s territory. The map below displays the location of China’s deserts and arid regions.

China and India make of 40% of the world’s population and although this figure seems strikingly high, estimates from 1 AD indicate the China and India combined for 60% percent of world population back then! Anyone who has visited either country is aware that both have very high population density. For comparison, world population density is 140 people per square mile – India is about 10 times that with 1008 people per square mile (ppsm) and China is 370 ppsm. Given what we know about the geography of China, this density estimate is quite low and once discounting it’s uninhabitable land, China’s density is more around 1233 ppsm. (Given that about 25% of India’s land is uninhabitable, a more direct comparison would put India density at 1344 ppsm). For those interested, here is the population density for some other countries: European Union (UK included) 304 ppsm, United States 85 ppsm, Brazil 62 ppsm, Russia 21 ppsm, and Canada 9 ppsm.

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