Thinking economically is an important skill because every decision we make involves costs and consequences. Costs do not necessarily involve money; a cost can be anything, including a missed opportunity (known as an opportunity cost). Because every decision we make means weighing cots and consequences, it is very important that we learn to economize our thoughts so that we can reap the greatest benefits with the lowest costs.
The legislation outlawed literacy tests and provided for the appointment of Federal examiners (with the power to register qualified citizens to vote) in certain jurisdictions with a history of voting discrimination. ... This act shifted the power to register voters from state and local officials to the federal government.