Read the article “The Magnitude and Causes of Agglomeration Economies” and write a summary of article. Imagine you're explaining it to someone who needs to know what has been written but does not have time to read it. Please include, with proper accreditation, diagrams or tables based on the material presented in the text. Explain what problem the paper addresses and why it matters. Explain what methodology is used, and, if appropriate, what data is used. Explain what the author & rsquo;s main conclusions are.