These are rudimentary lessons in Finance to help beginners understand other articles in this blog. For more in-depth information, I recommend taking the tutorials at Investopedia.
Risk and Reward (Text-only)
The Discount Rate (Text-only)
Opportunity Costs (Text-only)
Macroeconomics, Part 2: GDP Basics (Text-only)
We talk a lot about business, so you may want to watch the following videos to get a grasp about how business works: