Financial economics is the branch of economics characterized by a "concentration on monetary activities", in which "money of one type or another is likely to appear on both sides of a trade". Its concern is thus the interrelation of financial variables, such as share prices, interest rates and exchange rates, as opposed to those concerning the real economy. It has two main areas of focus: asset pricing and corporate finance; the first being the perspective of providers of capital, i.e. investors, and the second of users of capital. It thus provides the theoretical underpinning for much of finance.
In finance, the capital asset pricing model (CAPM) is a model used to determine a theoretically appropriate required rate of return of an asset, to make decisions about adding assets to a well-diversified portfolio.
Harry Max Markowitz was an American economist who received the 1989 John von Neumann Theory Prize and the 1990 Nobel Memorial Prize in Economic Sciences.
Modern portfolio theory (MPT), or mean-variance analysis, is a mathematical framework for assembling a portfolio of assets such that the expected return is maximized for a given level of risk. It is a formalization and extension of diversification in investing, the idea that owning different kinds of financial assets is less risky than owning only one type. Its key insight is that an asset's risk and return should not be assessed by itself, but by how it contributes to a portfolio's overall risk and return. It uses the past variance of asset prices as a proxy for future risk.
In finance, arbitrage pricing theory (APT) is a multi-factor model for asset pricing which relates various macro-economic (systematic) risk variables to the pricing of financial assets. Proposed by economist Stephen Ross in 1976, it is widely believed to be an improved alternative to its predecessor, the Capital Asset Pricing Model (CAPM). APT is founded upon the law of one price, which suggests that within an equilibrium market, rational investors will implement arbitrage such that the equilibrium price is eventually realised. As such, APT argues that when opportunities for arbitrage are exhausted in a given period, then the expected return of an asset is a linear function of various factors or theoretical market indices, where sensitivities of each factor is represented by a factor-specific beta coefficient or factor loading. Consequently, it provides traders with an indication of ‘true’ asset value and enables exploitation of market discrepancies via arbitrage. The linear factor model structure of the APT is used as the basis for evaluating asset allocation, the performance of managed funds as well as the calculation of cost of capital. Furthermore, the newer APT model is more dynamic being utilised in more theoretical application than the preceding CAPM model. A 1986 article written by Gregory Connor and Robert Korajczyk, utilised the APT framework and applied it to portfolio performance measurement suggesting that the Jensen coefficient is an acceptable measurement of portfolio performance.
In finance, a portfolio is a collection of investments.
Armen Albert Alchian was an American economist. He spent almost his entire career at the University of California, Los Angeles (UCLA). A major microeconomic theorist, he is known as one of the founders of new institutional economics and widely acknowledged for his work on property rights.
David LeFevre Dodd was an American educator, financial analyst, author, economist, and investor. In his student years, Dodd was a protégé and colleague of Benjamin Graham at Columbia Business School.
Investment management is the professional asset management of various securities, including shareholdings, bonds, and other assets, such as real estate, to meet specified investment goals for the benefit of investors. Investors may be institutions, such as insurance companies, pension funds, corporations, charities, educational establishments, or private investors, either directly via investment contracts/mandates or via collective investment schemes like mutual funds, exchange-traded funds, or REITs.
Jan Mossin (1936–1987) was a Norwegian economist. Born in Oslo, he graduated with a siv.øk. degree from the Norwegian School of Economics (NHH) in 1959. After a couple of years in business, he started his PhD studies in the spring semester of 1962 at Carnegie Mellon University.
Roger G. Ibbotson is Professor Emeritus in Practice of Finance at the Yale School of Management. He is also chairman of Zebra Capital Management LLC. He has written extensively on capital market returns, cost of capital, and international investment. He is the founder, advisor, and former chairman of Ibbotson Associates, now a Morningstar Company. He has written numerous books and articles including Stocks, Bonds, Bills, and Inflation with Rex Sinquefield, which serves as a standard reference for information and capital market returns.
In financial economics, asset pricing refers to a formal treatment and development of two main pricing principles, outlined below, together with the resultant models. There have been many models developed for different situations, but correspondingly, these stem from either general equilibrium asset pricing or rational asset pricing, the latter corresponding to risk neutral pricing.
The following outline is provided as an overview of and topical guide to finance:
Simply stated, Post-Modern Portfolio Theory (PMPT) is an extension of the traditional Modern Portfolio Theory (MPT) of Markowitz and Sharpe. Both theories provide analytical methods for rational investors to use diversification to optimize their investment portfolios. The essential difference between PMPT and MPT is that PMPT emphasizes the return that must be earned on an investment in order to meet future, specified obligations, MPT is concened only with the absolute return vis-a-vis the risk-free rate.
Jack Lawrence Treynor was an American economist who served as the President of Treynor Capital Management in Palos Verdes Estates, California. He was a Senior Editor and Advisory Board member of the Journal of Investment Management, and was a Senior Fellow of the Institute for Quantitative Research in Finance. He served for many years as the editor of the CFA Institute's Financial Analysts Journal.
A portfolio manager (PM) is a professional responsible for making investment decisions and carrying out investment activities on behalf of vested individuals or institutions. Clients invest their money into the PM's investment policy for future growth, such as a retirement fund, endowment fund, or education fund. PMs work with a team of analysts and researchers and are responsible for establishing an investment strategy, selecting appropriate investments, and allocating each investment properly towards an investment fund or asset management vehicle.
Eduardo Saul Schwartz is a professor of finance at SFU's Beedie School of Business, where he holds the Ryan Beedie Chair in Finance. He is also a Distinguished Research Professor at the University of California, Los Angeles. He is known for pioneering research in several areas of finance, particularly derivatives. His major contributions include: the real options method of pricing investments under uncertainty; the Longstaff–Schwartz model - a multi-factor short-rate model; the Longstaff-Schwartz method for valuing American options by Monte Carlo Simulation; the use of Finite difference methods for option pricing.
Portfolio optimization is the process of selecting the best portfolio, out of the set of all portfolios being considered, according to some objective. The objective typically maximizes factors such as expected return, and minimizes costs like financial risk. Factors being considered may range from tangible to intangible.
Downside risk is the financial risk associated with losses. That is, it is the risk of the actual return being below the expected return, or the uncertainty about the magnitude of that difference.
Returns-based style analysis is a statistical technique used in finance to deconstruct the returns of investment strategies using a variety of explanatory variables. The model results in a strategy's exposures to asset classes or other factors, interpreted as a measure of a fund or portfolio manager's investment style. While the model is most frequently used to show an equity mutual fund’s style with reference to common style axes, recent applications have extended the model’s utility to model more complex strategies, such as those employed by hedge funds.
