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Comparative advantage, specialization, and gains from trade
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When two agents have differing opportunity costs, there is potential for both of the to benefit if they specialize in what they each have comparative advantage in. This video explores how two parties can get better outcomes by specializing in their comparative advantage and trading. Created by Sal Khan.

Subject:
Economics
Social Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Khan Academy
Author:
Sal Khan
Date Added:
07/27/2021
Comparative advantage worked example
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In this video we work through an example of a question like you might see on an AP microeconomics or AP Macroeconomics exam determining who has comparative advantage in producing a good using data from a table. Topics include how to calculate opportunity costs and determine who has comparative advantage based on opportunity cost.

Subject:
Economics
Social Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Khan Academy
Author:
Sal Khan
Date Added:
07/27/2021
Comparative roles of women in Rome and Han China
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A discussion with Khan Academy World History Fellow Eman Elshaikh on the comparative roles of women in Rome and Han China (with brief discussion of women in Athens as well).

Subject:
History
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Khan Academy
Author:
Eman Elshaikh
Sal Khan
Date Added:
07/26/2021
Comparing Roman and Byzantine Empires
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Similarities and differences between the Roman Empire and the "Byzantine Empire" (which considered itself the continuation of the Roman Empire).

Subject:
History
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Khan Academy
Author:
Sal Khan
Date Added:
07/26/2021
Comparing mitosis and meiosis
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Comparison of the processes of mitosis and meiosis. Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell. Mitosis involves one cell division, whereas meiosis involves two cell divisions.

Subject:
Biology
Life Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Khan Academy
Author:
Sal Khan
Date Added:
05/05/2015
Comparison: Rise of empires
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Comparing what led to the rise of Achaemenid Persia, Maurya India, Han China, and the Roman Empire.

Subject:
History
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Khan Academy
Author:
Sal Khan
Date Added:
07/26/2021
Complex numbers
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Complex numbers can be represented three ways on the complex plane: cartesian coordinates, radius and angle, and exponential form. Created by Willy McAllister.

Subject:
Applied Science
Engineering
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Khan Academy
Author:
Sal Khan
Date Added:
02/12/2014
Components of GDP
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When using the expenditures approach to calculating GDP the components are consumption, investment, government spending, exports, and imports. In this video, we explore these components in more detail. Created by Sal Khan.

Subject:
Economics
Social Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Khan Academy
Author:
Sal Khan
Date Added:
07/27/2021
Concentration gradients
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A concentration gradient occurs when the concentration of particles is higher in one area than another. In passive transport, particles will diffuse down a concentration gradient, from areas of higher concentration to areas of lower concentration, until they are evenly spaced.

Subject:
Biology
Chemistry
Life Science
Physical Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Khan Academy
Author:
Sal Khan
Date Added:
07/30/2015