1. IB ECONOMICS: Supply and Demand -Oil Prices -
2. Oil Prices: What’s Behind the Volatility? Simple Economics
https://www.nytimes.com/interactive/2016/business/energy-environment/oil-prices.html?_r=1
3. IB Economics: Monetary Policy, reduced interest rates stimulate the economy
http://www.bbc.com/news/business-35770370
4. IB Economics: What is quantitative easing?
http://www.economist.com/blogs/economist-explains/2015/03/economist-explains-5