scholarly journals Financial Market Evaluative Inefficiencies and Companies Sub-Optimal Investment Choices: How to Get Out of the Shortermist Impasse?

2017 ◽  
Vol 9 (5) ◽  
pp. 143
Author(s):  
Bruna Ecchia

This paper examines, in an innovative way as compared to the literature on the subject, “whether, how and under what conditions” certain technical devices, such as so-called “loyalty bonuses,” devised to increase the holding period of shares, can effectively reach their goal of countering the short-termist tendency involved in company investment decisions. This trend is an expression of compliance toward the current short-termism of the financial market as evidenced by the enormous shortening of the average share-holding period. This is not a recent phenomenon but it becomes more marked in times of crisis. Thus many projects, although functional to a company’s competitiveness, are rejected simply because of their deferred profitability and therefore incompatibility with the short market horizon, more focused on results emerging from quarterly reports than on a company’s long-term choices for business development. If the market is unable to immediately and adequately incorporate into prices the benefits from deferred returns, shareholders can equally obtain them if they remain durably connected with the company, but this choice must be encouraged by appropriate incentives. The loyalty bonus may be useful for this purpose and for long-term company interests, because it contributes to a better alignment of shareholders’ expectations with a more long-term vision in investment strategy. However the bonus, rather than involving the minority shareholders in the enterprise’s “mission,” often degenerates into a Control Enhancing Mechanism, though with unusual effects, among which a situation of “captivity” for all shareholders, even and especially the majority shareholders. In any case the utility of the bonus can occur, especially in less efficient markets. In a fully efficient market it could be harmful.

2019 ◽  
Vol 49 (03) ◽  
pp. 847-883
Author(s):  
Xiaoqing Liang ◽  
Virginia R. Young

AbstractWe compute the optimal investment strategy for an individual who wishes to minimize her probability of lifetime ruin. The financial market in which she invests consists of two riskless assets. One riskless asset is a money market, and she consumes from that account. The other riskless asset is a bond that earns a higher interest rate than the money market, but buying and selling bonds are subject to proportional transaction costs. We consider the following three cases. (1) The individual is allowed to borrow from both riskless assets; ruin occurs if total imputed wealth reaches zero. Under the optimal strategy, the individual does not sell short the bond. However, she might wish to borrow from the money market to fund her consumption. Thus, in the next two cases, we seek to limit borrowing from that account. (2) We assume that the individual pays a higher rate to borrow than she earns on the money market. (3) The individual is not allowed to borrow from either asset; ruin occurs if both the money market and bond accounts reach zero wealth. We prove that the borrowing rate in case (2) acts as a parameter connecting the two seemingly unrelated cases (1) and (3).


2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Jun Zhang

With the gradual development and improvement of the financial market, financial derivatives such as futures and options have also become the objects of competition in the financial market. Therefore, how to make the most favorable and optimized investment and consumption when options are included? It has become a problem facing investors. Aiming at the optimal investment problem of investors, this paper studies the calculation of an optimal investment strategy in stochastic differential equations in financial market options on the basis of fuzzy theory. Now, stochastic calculus has become an important branch of stochastic analysis, finance, control, and other fields. The study of introducing stochastic differential equations is mainly to solve the stochastic control problem, which is the principle of the stochastic maximum. In finance, some hedging or pricing problems of contingent rights can eventually be transformed into a series of stochastic differential equations. Based on the historical data of five aspects of bank deposits, bonds, funds, stocks, and real estate of four listed insurance companies, the paper analyzes the optimization strategy of the capital investment of listed insurance companies based on the investment yield of the domestic investment market. According to the final results, the historical proportion of bank deposits of the superior company is 27%, and the optimal proportion given by the model is 25%; the total proportion of funds and stocks is 15%, and the optimal proportion of funds analyzed in the model is 20% and the optimal proportion of stocks is 10%. Therefore, the final results show that the investment efficiency of listed insurance companies can actually increase investment in stocks and funds and reduce the proportion of bank deposits to obtain greater investment returns.


1998 ◽  
Vol 01 (03) ◽  
pp. 377-387 ◽  
Author(s):  
Sergei Maslov ◽  
Yi-Cheng Zhang

We design an optimal strategy for investment in a portfolio of assets subject to a multiplicative Brownian motion. The strategy provides the maximal typical long-term growth rate of investor's capital. We determine the optimal fraction of capital that an investor should keep in risky assets as well as weights of different assets in an optimal portfolio. In this approach both average return and volatility of an asset are relevant indicators determining its optimal weight. Our results are particularly relevant for very risky assets when traditional continuous-time Gaussian portfolio theories are no longer applicable.


2018 ◽  
Vol 6 (1) ◽  
pp. 35-57
Author(s):  
Chunxiang A ◽  
Yi Shao

AbstractThis paper considers a worst-case investment optimization problem with delay for a fund manager who is in a crash-threatened financial market. Driven by existing of capital inflow/outflow related to history performance, we investigate the optimal investment strategies under the worst-case scenario and the stochastic control framework with delay. The financial market is assumed to be either in a normal state (crash-free) or in a crash state. In the normal state the prices of risky assets behave as geometric Brownian motion, and in the crash state the prices of risky assets suddenly drop by a certain relative amount, which induces to a dropping of the total wealth relative to that of crash-free state. We obtain the ordinary differential equations satisfied by the optimal investment strategies and the optimal value functions under the power and exponential utilities, respectively. Finally, a numerical simulation is provided to illustrate the sensitivity of the optimal strategies with respective to the model parameters.


2020 ◽  
Vol 2020 ◽  
pp. 1-14
Author(s):  
Peng Yang

A robust time-consistent optimal investment strategy selection problem under inflation influence is investigated in this article. The investor may invest his wealth in a financial market, with the aim of increasing wealth. The financial market includes one risk-free asset, one risky asset, and one inflation-indexed bond. The price process of the risky asset is governed by a constant elasticity of variance (CEV) model. The investor is ambiguity-averse; he doubts about the model setting under the original probability measure. To dispel this concern, he seeks a set of alternative probability measures, which are absolutely continuous to the original probability measure. The objective of the investor is to seek a time-consistent strategy so as to maximize his expected terminal wealth meanwhile minimizing his variance of the terminal wealth in the worst-case scenario. By using the stochastic optimal control technique, we derive closed-form solutions for the optimal time-consistent investment strategy, the probability scenario, and the value function. Finally, the influences of model parameters on the optimal investment strategy and utility loss function are examined through numerical experiments.


Ekonomika ◽  
2011 ◽  
Vol 90 (1) ◽  
pp. 101-114 ◽  
Author(s):  
Arvydas Paškevičius ◽  
Rūta Mickevičiūtė

This study reviews previous research on the contrarian investment strategy as first analyzed by De Bondt and Thaler (1985), and aims at deepening and complementing the existing research on the subject. The paper analyses the results of applying the strategy to NASDAQ OMX Vilnius stocks over the period 2003–2010, dividing the testing into two groups: prior to the economic crisis and the crisis periods, based on the movement of the OMXV index. The method uses holding period returns in evaluating the standard contrarian investment strategy. The paper explains the methodology in detail and presents the findings which show no considerable holding period returns from the strategy in NASDAQ OMX Vilnius during the decline period; however, contrarian strategy seems to be a better option than a standard market index based portfolio during the periods of rapid growth when stocks are overrated.


2019 ◽  
Vol 11 (5) ◽  
pp. 43
Author(s):  
Doh-Khul Kim

The Dogs of the Dow theory has been a popular tool in the financial market. But while the theory is simple, there have been mixed findings on its validity. Using U.S. data from 2000 through 2017, this paper identifies how consistently an investment strategy that follows the Dogs of the Dow theory outperforms the average market. The results show that the theory has not worked well in the recent U.S. market when trading costs and taxes are included. Rather, holding an equally weighted investment of all firms is more likely to outperform the Dow Jones Industrial Average index and the Dogs of the Dow strategy in the long term.


2015 ◽  
pp. 54-77
Author(s):  
A. Abramov ◽  
A. Radygin ◽  
M. Chernova

The article examines the influence of investment horizon increase on comparative advantages of main asset classes and on the principles of investment strategy development. Unlike in the traditional approach of portfolio management theory, the study shows that for long-term investments corporate bonds have the advantage over equity in terms of return-risk tradeoff. This fact argues in favor of the fixed-income oriented (including infrastructure bonds) investment strategies for pension funds and institutional investors. The article draws special attention to the importance of regular portfolio rebalancing for long-term investors. In this case the variation of returns decreases and the variation of risks increases with the holding period. Consequently, with horizon increase a long-term investor should allocate more assets in the low-risk financial instruments in order to keep a certain level of return-risk tradeoff. This argument becomes increasingly important for the purposes of pension savings management.


Author(s):  
Anna Mikheeva ◽  
Anastasia Petrova

The paper considers management of sovereign wealth funds established in the countries located in the transboundary territories of the Russian Federation, China, the Republic of Kazakhstan and Mongolia. Sovereign wealth funds have gained great importance in the global financial market, which indicates the relevance of the study of these institutions of financial and economic activity. The purpose of this research is to assess the efficiency of management of sovereign wealth funds. The objects of research are sovereign wealth funds, the subject of research is management of these funds. The methods of research used in the article are comparative cross-country analysis, structure analysis and systematic approach. As a result of the study, it was concluded that the management of China's sovereign wealth funds is highly efficient, Kazakhstan's long-term fund management policy based on the Norwegian model is advantageous, and the activities of Mongolian funds show lack of transparency. A recommendation is given to include profitable risk assets in the portfolio of a Russian sovereign fund in order to increase its profitability.


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