Showing papers on "Proxy (statistics) published in 1975"
TL;DR: The Treynor-Black Model (TBM) as discussed by the authors is an idealized view of the investment world whose premises include some fairly unrealistic assumptions, and it offers the professional investor a new framework for viewing the investment process that can lead to a better understanding of the roles of various investment professionals and more effective decision making.
Abstract: The Treynor-Black Model (TBM) is an idealized view of the investment world whose premises include some fairly unrealistic assumptions. Nevertheless, it offers the professional investor a new framework for viewing the investment process that can lead to a better understanding of the roles of various investment professionals (such as security analysts and portfolio managers) and more effective decision making. TBM is based on the premise that investors like return and dislike risk. This view is probably consistent with the feelings of most investors although they may not agree on the definition of risk and the criterion they use to determine the attractiveness of a particular return-risk tradeoff. The definition of risk used in TBM is a measure of the variability of return called the standard deviation of return (to save space it will be denoted by the symbol ain what follows). Many investors may prefer other measures of risk, such as downside potential or the sensitivity of a portfolio (or security) to fluctuations of the market (beta, denoted by ,8). Most useful measures of risk are highly correlated with o-, and investors who prefer them can think of aas a proxy that will rank portfolios in about the same way as their own measure of risk. The definition of portfolio attractiveness used in TBM is based on a measure (denoted by P) introduced by Professor William F. Sharpe. The numerator (the top part) of this fractional measure is the amount by which_the expected return of the portfolio (denoted by Rp) exceeds the riskless rate of interest (RF). The denominator (the bottom part) is the risk of the portfolio (urp). Symbolically, it is written as
10 citations
TL;DR: In this paper, the authors examined the relationship between distance and the number of retail stores in SMSA's and states by using land area as a proxy for distance between stores and consumers.
Abstract: This article examines the relationship between distance and the number of retail stores in SMSA's and states by using land area as a proxy for distance between stores and consumers. Correlation analysis showed no statistically significant relationship between land area and the number of stores. This lack of relationship is attributed to the inadequacy of the land area variable as a proxy for distance. Consequently, actual measures of distance are needed to appraise the relationship between distance and numbers of retail stores.
4 citations
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TL;DR: In this article, the authors propose a Marriage by Proxy (MVP) scheme, which is based on the idea of marriage by proxy (MBM) in ethnic and migration studies.
Abstract: (1975). Marriage by proxy. Journal of Ethnic and Migration Studies: Vol. 4, No. 2, pp. 254-255.
3 citations