Examples of Deforestation on Google Earth

There are lots of examples of deforestation occurring around the world and the purpose of this post is to provide some visual examples, using Google Earth, of deforestation occurring in different countries. A lot of deforestation is happening because of timber production, the harvesting of trees to use their wood for inputs in the production of goods such as furniture and houses. Wood is also used as a heating source for cooking or climate control. Forest conversion can also happen because those in charge think that alternate land uses will provide higher profits, or benefits for society (depending on who controls the forest).

The following examples look at deforestation occurring in five different controls with a brief hypothesis as to the motivation of the conversion. You can view larger versions of any of the images by clicking on them.

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Economics for kids publishes its first book!

The book is finally available on Amazon. Thanks to everyone for their support during this process. Right now the physical version of the book is available for $6.99 and the kindle version is available for $1.99.


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Economics for kids children's book

We are now live on Kickstarter! Click below for more information!
Kickstarter Project for Economics for Kids
Economics for Kids Kickstarter Project

Some friends and I have written a children's picture book about the ideas of tradeoffs and opportunity costs. We are in the process of having illustrations done and it is quite an expensive process. In order to offset some of these costs to keep the price of the book low, we are considering running a kickstarter campaign in order to raise the funds.

The book is about Johnny (named after John Maynard Keynes a famous economist), and the book would focus on many decisions he makes. His thought process during these decisions are explored in the book. Please see the cover draft below, and some sample passages from the children's picture book.

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Calculating consumer surplus with all you can eat

This post goes over the example problem of calculating consumer surplus from different scenarios. The scenario sets up by giving you a table depicting a demand curve and then asks you to calculate consumer surplus with different prices. Finally, an all you can eat scenario is introduced where you pay a flat fee to enter the transaction but the marginal cost of each additional unit is effectively zero. Check this past post for a review of calculating consumer surplus.

A restaurant sells hot wings. A consumers demand for hotwings can be shown as:
Number of hot wing servings and the willingness to pay for hotwings (each serving)

1 $10
2 $8
3 $6
4 $4
5 $2
6 $0

a. If the price of an additional serving of hotwings is $6, how many servings will be purchased? How much consumer surplus does will you receive?
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Which FreeEconHelp.com video do you like best?

Of the following videos, which do you like the best for advertising freeeconhelp.com? Leave your thoughts in the comments or fill out the poll at the bottom of the screen. You can leave a link to your own video in the comments and I will add them to the list!

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Strictly convex vs. convex and well-behaved preferences in economics

This post is going to be a bit more technical than average and will probably be aimed towards the upper division microeconomics or perhaps even the graduate level students. When we go a letter more in depth studying consumer theory we learned about well-behaved preferences and the associated shapes that the indifference curves take on. Below you can see a graph with three different indifference curves where 2 are straight lines and one is bowed in. The curve that is bowed in is strictly convex, and all three of them are convex.

Lines A, B, and C all represent indifference curves, while points D and E represent points where the indifference curves touch or intersect (for discussions sake, point D is the point of tangency between lines C and A).

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Do used car sales count in GDP?

Consider the following scenario:

You decide to purchase a used car (or a house, or anything used for that matter) from a used car dealer. The car's price is $2,500 (and for some reason you do not negotiate, always negotiate!). Out of that $2,500, $800 of it is considered profit for the dealer (meaning that he paid $1,700 for the car). How would this trade enter into Gross Domestic Product (GDP)?

Possible answers given include:

1) All of it: in this scenario the entire $2,500 would be included in GDP

2) The profit or "value added" (note that value added is in quotes because the actual value added is debatable): or the $800 because of an increase in consumption.

3) The value of the car - profit: or $1,700 (I can't think of a logical reason why this could be right)

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