Mathematical economics | Econometric models
The gravity model of international trade in international economics is a model that, in its traditional form, predicts bilateral trade flows based on the economic sizes and distance between two units. Research shows that there is "overwhelming evidence that trade tends to fall with distance." The model was first introduced in economics world by Walter Isard in 1954. The basic model for trade between two countries (i and j) takes the form of In this formula G is a constant, F stands for trade flow, D stands for the distance and M stands for the economic dimensions of the countries that are being measured. The equation can be changed into a linear form for the purpose of econometric analyses by employing logarithms. The model has been used by economists to analyse the determinants of bilateral trade flows such as common borders, common languages, common legal systems, common currencies, common colonial legacies, and it has been used to test the effectiveness of trade agreements and organizations such as the North American Free Trade Agreement (NAFTA) and the World Trade Organization (WTO) (Head and Mayer 2014). The model has also been used in international relations to evaluate the impact of treaties and alliances on trade (Head and Mayer). The model has also been applied to other bilateral flow data (also 'dyadic' data) such as migration, traffic, remittances and foreign direct investment. (Wikipedia).
Physics - Mechanics: Gravity (1 of 20) Newton's Law of Gravity
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain Newton's Law of Gravity and give an example of how it works.
From playlist PHYSICS 18 GRAVITY
Physics - Mechanics: Ch. 18.1: Gravity with Mass Distribution (1 of 17) Point Masses: Ex. 1
Visit http://ilectureonline.com for more math and science lectures! In this video I will calculate the force of gravity on m3 due to the presence of m1 and m2, example 1. Next video in this series can be found at: https://youtu.be/WghxStJO46U
From playlist PHYSICS 18.1 GRAVITY WITH MASS DISTRIBUTION
From playlist Level 2 NCEA Physics
People have a lot of different ideas about what gravity is: a downward force that stops you from flying off into space, an attraction smaller objects experience towards larger objects, or a mutual attraction between all masses. It is the last of these ideas that best reflects a scientific
From playlist Gravity
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From playlist Science Unplugged: General Relativity
Teach Astronomy - Universal Law of Gravity
http://www.teachastronomy.com/ Newton's master work is the universal law of gravity. Newton's law of gravity states that every object in the universe, every particle, every planet, every star, every galaxy, attracts each other with a force that is proportional to each of the masses of two
From playlist 03. Concepts and History of Astronomy and Physics
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From playlist Gravity - A Level Physics
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Support me on Patreon: https://www.patreon.com/quahntasy A brief introduction to Newtonian Gravity(or Gravity for dummies) ,General Relativity and Quantum gravity (Loop Quantum gravity). The whole idea of general relativity is that matter influence spacetime curvature. Incorporating this i
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Stephen Wolfram hosts a live and unscripted Ask Me Anything about science and technology for all ages. Find the playlist of Q&A's here: https://wolfr.am/youtube-sw-qa Originally livestreamed at: https://twitch.tv/stephen_wolfram Outline of Q&A 0:00 Stream starts 0:42 Stephen begins th
From playlist Stephen Wolfram Ask Me Anything About Science & Technology
Random Matrix Models, 2D Quantum Gravity, and Holography (Part 2) - Clifford Johnson
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From playlist Natural Sciences
The Large N Limit of Chern Simons Vector Models: Past and Present by Shiroman Prakash
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From playlist String Theory: Past and Present
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Computer Science/Discrete Mathematics Seminar I Topic: Communication and Query Complexity of Bipartite Perfect Matching Speaker: Yuval Efron Affiliation: Columbia University Date: November 14, 2022 In this talk, I'll discuss a recent result where we settle the complexities of the maximum
From playlist Mathematics
Introduction to Wess-Zumino Models and N=1 Super by Andreas Wipf
Nonperturbative and Numerical Approaches to Quantum Gravity, String Theory and Holography DATE:27 January 2018 to 03 February 2018 VENUE:Ramanujan Lecture Hall, ICTS Bangalore The program "Nonperturbative and Numerical Approaches to Quantum Gravity, String Theory and Holography" aims to
From playlist Nonperturbative and Numerical Approaches to Quantum Gravity, String Theory and Holography
Livine Etera : The Geometry of Loop Quantum Gravity
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SUSY for Strings and Branes, Part 1 - Katrin Becker
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From playlist PiTP 2010
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Stephen Wolfram hosts a live and unscripted Ask Me Anything about science and technology for all ages. Find the playlist of Q&A's here: https://wolfr.am/youtube-sw-qa Originally livestreamed at: https://twitch.tv/stephen_wolfram Outline of Q&A 0:00 Stream starts 1:42 Stephen begins the s
From playlist Stephen Wolfram Ask Me Anything About Science & Technology
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Stephen Wolfram hosts a live and unscripted Ask Me Anything about science and technology for all ages. Find the playlist of Q&A's here: https://wolfr.am/youtube-sw-qa Originally livestreamed at: https://twitch.tv/stephen_wolfram Outline of Q&A 0:00 Stephen talking about what a 1/3 cen
From playlist Stephen Wolfram Ask Me Anything About Science & Technology
Physics - Mechanics: Gravity (2 of 20) What Is Gravity?
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain what gravity is and how it exists in space.
From playlist MOST POPULAR VIDEOS
Astrophysics: Binary Star System (18 of 40) Newton's Equation of Gravity
Visit http://ilectureonline.com for more math and science lectures! To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will examine Newton’s equation of gravity F=GmM/R^2. Previous video in this series can be seen at: https://youtu.be/2okz-VGkeAI
From playlist ASTROPHYSICS 1 BINARY SYSTEMS & KEPLER'S LAWS
The Enceladus Vent Explorer: An interview with Dr. Hiro Ono
My guest today is Dr. Hiro Ono, the Group Leader of the Robotic Surface Mobility Group for NASA's Jet Propulsion Lab. Dr. Ono is been awarded a NIAC prize to develop a rover that could crawl into the fascinating vents on Enceladus, to search for evidence of life on this icy world. https:/
From playlist Interviews