David Romer Books

New Keynesian Economics: Imperfect Competition and Sticky Prices

By N. Gregory Mankiw

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New Keynesian Economics: Coordination Failures and Real Rigidities

By N. Gregory Mankiw

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Prominent economists reconsider the fundamentals of economic policy for a post-crisis world.In 2011, the International Monetary Fund invited prominent economists and economic policymakers to consid...

New Keynesian Economics, Vol. 1: Imperfect Competition and Sticky Prices

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New Keynesian Economics, Vol. 2: Coordination Failures and Real Rigidities

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Brookings Papers on Economic Activity

By David Romer

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Tentative contents includeThe Age of Reason: Financial Decisions over the Life Cycle and Implications for RegulationSumit Agarwal (Federal Reserve Bank Of Chicago), Xavier Gabaix (New York Universi...

Guide de la Bible hebraique

By Romer Macchi, Thomas Romer

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.