William N. Goetzmann Books

The Equity Risk Premium: Essays and Explorations

By William N. Goetzmann, Roger G. Ibbotson

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The Origins of Value: The Financial Innovations That Created Modern Capital Markets

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"From the invention of interest in Mesopotamia and the origin of paper money in China, to the creation of mutual funds, inflation-indexed bonds, and global financial securities, here is a sweeping...

The Great Mirror of Folly: Finance, Culture, and the Crash of 1720

By William N. Goetzmann

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The West of the imagination

By William H. Goetzmann

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Modern portfolio theory and investment analysis

By Martin J. Gruber, Edwin J. Elton, William N. Goetzmann, Stephen J. Brown

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The Investment Portfolio Users Manual And Software

By Ehud Ronn, Intellipro, Joseph Finnerty, Christopher Blake, Giorgio DeSantis, Edwin J. Elton, Martin J. Gruber, William N. Goetzmann, Inc. Intellipro, Intellipro, Inc., Elton, Edwin J., Gruber, Martin J., Blake, Christopher, DeSantis, Giorgio, Finnerty, Joseph, Goetzmann, William N., Ronn, Ehud

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"This software is a powerful windows-based program that lets students create, evaluate, and manage realistic portfolios. It gives them an interactive experience that makes the theory clear and rele...

Modern Portfolio Theory and Investment Analysis

By Edwin J. Elton, Martin J. Gruber, Stephen J. Brown, William N. Goetzmann

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The Investment Portfolio User s Manual

By Ehud Ronn, Christopher Blake, Joseph Finnerty, Martin J. Gruber, Edwin J. Elton, William N. Goetzmann, Intellipro, Georgio DeSantis

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Money Changes Everything

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Money Changes Everything

By William N. Goetzmann

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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.