The Market Portfolio is not an efficient portfolio. There are many evidences that tell us that: the equal weighted indexes have beaten their market-value weighted indexes for many years, many easy-to-build portfolios (some “smart-beta”, “multifactors”) have beaten market-value weighted...

The document starts with 100 questions that students, alumni and other persons (judges, arbitrageurs, clients…) have posed to me over the past years. They were recompiled so as to help the reader remember, clarify and, in some cases, discuss some useful concepts in finance. Most of the...

On April 16, 2012 the Argentine Federal Government decreed the intervention of YPF. Its share price declined 29% the day after. Two weeks later the Argentinean Parliament approved the expropriation of 51% of the YPF shares owned by Repsol. We prepared a month ago the case “Valuation of an...

The “VERAVAL Valuation” forecasts a great future for ElectraBul with solid customer, sales and FCF growth. Between 2010 and 2019 the customer base is expected to grow by 60%, sales in MWh by 72%, etc. However, the “VERAVAL Valuation” concludes that the value of ElectraBul shares in April...

Interest rates have a considerable bearing on share prices. Any investor's experience shows that, in general, when interest rates fall significantly, share prices rise, and vice-versa. We begin by observing the evolution of interest rates in the last 22 years in the United States. We also look...

La versión española de este artículo se puede encontrar en: "http://ssrn.com/abstract=1125625" http://ssrn.com/abstract=1125625.The return on investments depends on the effects of inflation. To analyze the effect of inflation, we shall use a case study of two companies engaging in the same...

This case presents the valuation of the shares of an electric company in an emerging country. It permits the reader to identify errors and recalculate the valuation.ElectraBul was expropriated by the government in April 2010. The government said that ElectraBul shareholders should be paid a fair...

Company valuation using discounted cash flows is based on the valuation of the Government bonds: it consists of applying the procedure used to value the Government bonds to the debt and shares of a company. This is easy to understand (sections 1, 2 and 3). But company valuation is complicated by...

We report 2,510 answers from professors from 65 countries and 934 institutions. 1,791 respondents use betas, but 107 of them do not justify the betas they use.97.3% of the professors that justify the betas use regressions, webs, databases, textbooks or papers (the paper specifies which ones),...

This is an annotated appendix that accompanies the paper. In this note, we provide detailed commentary on a numerical example that illustrates the ideas that we discuss in the main paper. The numerical example is in Table18.10, Chapter 8, page 656, of the third edition of Corporate Finance,...