The Effect of Degree of Risk Aversion on Incentive Problem with Interim Participation Constraints

2011 ◽  
Author(s):  
Jianli Wang ◽  
Jingyuan Li
2017 ◽  
Vol 34 (02) ◽  
pp. 1750001
Author(s):  
Wensi Zhang ◽  
Jinlin Li ◽  
Ran Zhang ◽  
Yahong Chen

This paper investigates the impact of emergency order in a price-dependent newsvendor setting. To this end, we compare two ways handling the excess demand: the excess demand is lost and a penalty cost is incurred, or the excess demand can be satisfied by an emergency order. Which way is better depends on the emergency purchase cost [Formula: see text] in emergency-order way and the price [Formula: see text] plus penalty cost [Formula: see text] in lost-sales way. For a risk-neutral newsvendor, our results indicate that, when [Formula: see text] is not larger than [Formula: see text], the emergency order way can lead to smaller order quantity and higher expected profit. We continue to discuss the impact of newsvendor’s risk aversion and demand uncertainty on the optimal decisions of the two ways. Theoretical analysis and numerical examples indicate that when the emergency purchase cost is not high, the differentials of the optimal order quantities and expected profits will be larger as the degree of risk aversion/demand uncertainty increases. What is more, we prove that there exists a threshold value of the emergency purchase cost so that the two ways handling excess demand can obtain the same expected profit, and this threshold value increases as the degree of risk aversion decreases.


2019 ◽  
Vol 3 (3) ◽  
pp. p133
Author(s):  
Elvis Cornerstone

This paper examines the effect of financial sector reforms on net interest margin of Ghanaian banks during the period 1997-2006. Changes have taken place in Ghana as in other countries. However, net interest margins have not declined as much in Ghana as they have elsewhere due to the influence of the degree of risk aversion, high operating costs and uncompetitive nature of the market structure. Although banks have relied heavily on fee- and commission-based services as additional sources of income to lower margins, this paper argues that despite recent developments in the Ghanaian financial landscape, financial sector reforms have not yet succeeded in bringing about a major reduction in the operating costs of banks that would translate into substantially narrower margins. This is by far the major significant effect of relatively wide net interest margin in Ghana.


2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Liu Liang ◽  
Li Futou

This paper aims to fill up the gap that the previous research has never explored, the deferred payment supply chain with a risk-averse supplier. To this end, the conditional value-at-risk (CVaR) was adopted as a criterion to measure the influence of retailer’s deferred payment on supply chain performance. According to this criterion, the retailer’s optimal order quantity and the supplier’s optimal wholesale price per unit product were investigated under decentralized decision-making. Then, the existence of a unique optimal strategy was discussed for risk-averse supplier and retailer, and the values of risk-averse, initial capital, and wholesale price were calculated in detail. Finally, the theoretical results were testified through a numerical example. It is concluded that retailer’s optimal order quantity is negatively correlated with the wholesale price, initial capital, and degree of risk aversion, so that the retailer can benefit through proper risk aversion; the supplier’s expected profit decreases with the increase in the degree of risk aversion, yet the optimal wholesale price is determined by the degree of risk aversion of supplier and retailer. The research findings shed valuable new light on how to manage a supply chain involving risk-averse supplier and retailer.


2015 ◽  
Vol 15 (2) ◽  
pp. 160-179 ◽  
Author(s):  
G. DELPRAT ◽  
M.-L. LEROUX ◽  
P.-C. MICHAUD

AbstractThe standard model of intertemporal choice assumes risk neutrality towards the length of life: under additivity of lifetime utility and expected utility assumptions, agents are not sensitive to a mean preserving spread in the length of life. Using a survey fielded in the RAND American Life Panel, this paper provides empirical evidence on possible deviation from risk neutrality with respect to longevity in the US population. The questions we ask allow to find the distribution as well as to quantify the degree of risk aversion with respect to the length of life in the population. We find evidence that roughly 75% of respondents were not neutral with respect to longevity risk. Hence, there is a little empirical support for the joint use of the expected utility and additive lifetime utility assumptions in life-cycle models. Higher income households are more likely to be risk averse towards the length of life. We do not find evidence that the degree of risk aversion varies with age or education.


2020 ◽  
Vol 39 (4) ◽  
pp. 4859-4868
Author(s):  
Ning Wang ◽  
Meng Sun ◽  
Liu Yu ◽  
Fazhu Jiang

Farmers’ risk preferences and degree of risk aversion affect their production and management decisions. According to Just-Pope stochastic production function model, we get the expression of the single element risk-aversion coefficients that include input element and hog slaughter absolute price, compared with the expression of relative price mean risk-aversion coefficients, it can directly observe the influence of the element and output price on single element risk-aversion coefficients. Based on the regression procedures and the calculation method of the average value of the element risk-aversion coefficients, mean risk-aversion coefficients of per household medium-scale hog producers are calculated in 76 households, 11 counties, Heilongjiang province. The results show that medium-scale hog producers are risk-averse, accounting for 96%; newborn animal weight and feed consumption affect hog producers’ degree of risk aversion. The former is the risk-reducing input element, while the latter is the risk-increasing input element.


2019 ◽  
Vol 32 (2) ◽  
pp. 218-236
Author(s):  
Amen Aissi Harzallah ◽  
Mouna Boujelbene Abbes

The aim of this article is to compare the portfolio optimization generated by the behavioral portfolio theory (BPT) and the mean variance theory (MVT) by investigating the impact of the global financial crisis on the asset allocation. We use data from the Canadian Stock Exchange over the 2002–2015 period. By comparing both approaches, we show that for any level of aspiration and admissible failure, the BPT optimal portfolio will always contain a part of the mean–variance frontier. Thus, in the case of higher degree of risk aversion induced by typical BPT investors, the security set is located on the upper right of the Markowitz frontier. However, even if the optimal portfolios of MVT and BPT may coincide, MVT investors associated with an extremely low degree of risk aversion will not systematically choose BPT optimal portfolios. Our results also indicate the period of financial crisis generate huge losses in MVT portfolio values that implies a lower expected return and a higher level of risk. Furthermore, we point out the absence of the BPT optimal portfolio when potential losses are higher during the 2008 global financial crisis. JEL: G11, G17, G40


2020 ◽  
Vol 9 ◽  
pp. 43-54 ◽  
Author(s):  
Riza Demirer ◽  
Shrikant Jategaonkar

We show that time-varying risk aversion serves as a significant predictor of stock market momentum in the U.S. and globally. Risk aversion is found to be a robust predictor of momentum returns even after controlling for various well established stock market predictors and absorbs the predictive power of market volatility. The findings imply that momentum strategies can be enhanced by conditioning trades on the degree of risk aversion in the marketplace.


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