Search results for " return"

CORRELATIONS AMONG FORWARD RETURNS IN THE NORDIC ELECTRICITY MARKET

2009

I analyze empirical correlations of electricity forward returns from the perspective of a random field model that specifies the correlations in terms of the temporal separation between forward maturities. It turns out that temporal separation cannot fully account for the empirical forward return correlations. Specifically, the relation between correlations and temporal separation does not seem to be invariant across segments of the electricity forward market or trading periods.

Value preserving portfolio strategies in continuous-time models

1997

We present a new approach for continuous-time portfolio strategies that relies on the principle of value preservation. This principle was developed by Hellwig (1987) for general economic decision and pricing models. The key idea is that an investor should try to consume only so much of his portfolio return that the future ability of the portfolio should be kept constant over time. This ensures that the portfolio will be a long lasting source of income. We define a continuous-time market setting to apply the idea of Hellwig to securities markets with continuous trading and examine existence (and uniqueness) of value-preserving strategies in some widely used market models. Further, we discuss…

How to best return the value of a function

1989

Fuzzy Mathematical Programming for Portfolio Management

2000

The classical portfolio selection problem was formulated by Markowitz in the 1950s as a quadratic programming problem in which the risk variance is minimized. Since then, many other models have been considered and their associated mathematical programming formulations can be viewed as dynamic, stochastic or static decision problems. In our opinion, the model formulation depends essentially on two factors: the data nature and the treatment given to the risk and return goals. In this communication, we consider several approaches to deal with the data uncertainty for different classical formulations of the portfolio problem. We make use of duality theory and fuzzy programming techniques to ana…

Aggregation of preferences for skewed asset returns

2014

This paper characterizes the equilibrium demand and risk premiums in the presence of skewness risk. We extend the classical mean-variance two-fund separation theorem to a three-fund separation theorem. The additional fund is the skewness portfolio, i.e. a portfolio that gives the optimal hedge of the squared market return; it contributes to the skewness risk premium through co-variation with the squared market return and supports a stochastic discount factor that is quadratic in the market return. When the skewness portfolio does not replicate the squared market return, a tracking error appears; this tracking error contributes to risk premiums through kurtosis and pentosis risk if and only …

Does a global wealth tax reduce inequality? When Piketty meets Mankiw

2020

Abstract We investigate the effects of a wealth tax on consumption and wealth inequality in a standard small open economy model featuring labour income heterogeneity. We show that consumption inequality and wealth inequality are identical in the long run if consumption growth exceeds output growth. Under this condition, the wealth tax reduces long run inequality under two additional conditions. First, the difference between the rate of return on wealth and the growth rate, r − g , is higher than a positive threshold. Second, the tax rate is lower than a cap which rises in r − g but decreases in labour income heterogeneity.

A comment on mortgage procylicality

2012

This paper comments on mortgage procyclicality. A framework for credit constraints along the lines of Kiyotaki and Moore (1997) is applied to illustrate a potential regime shift in the credit risk assessments of mortgagees. Depending on the relationship between house price growth and the alternative rate of return the weight given to collateral and debt-servicing ability may vary according to the house price cycle as mortgagees engage in search-for-yield. The regime shifts induced by increased global liquidity and expectations of continued housing appreciation might stimulate owner-occupation and LTV-ratios and induce mortgage procyclicality.

ESTIMATION OF RATES OF RETURN TO INVESTMENTS IN EDUCATION IN LATVIA

2021

The aim of the article is to prove the positive impact of education on work salary. For this purpose, the main task of the article is toestimate the Mincer rate of return by taking several factors into account. A secondary task of the research is to analyze the results of2010 and 2011 and to find explanations for the significant differences between the two years. The results of research and a detailedanalysis of the labour market indicate a positive return from attainment of education at an individual level, and they strengthen thehypothesis about a correlation among higher education attainment, higher employment levels and welfare. So far, the Mincer rate ofreturn has not been widely used …

Regional differences in returns to education for entrepreneurs versus wage earners

2010

Many studies suggest that rates of return to schooling are lower for entrepreneurs than for employees, although the opposite has also been reported. This paper analyses the returns to education for entrepreneurs in urban and rural regions in Finland and compares these to the returns for wage earners. These areas show different rates of self-employment, higher rates being found in rural areas and lower rates in urban areas. The analysis is based on a rich, register-based dataset that includes a 7% random sample of all Finns. To avoid potential sources of bias, Mincer-type income equations are estimated using different estimation procedures. The results show regional variation in returns to e…

ESTIMATION OF PRIVATE AND SOCIAL RATES OF RETURN TO INVESTMENTS IN EDUCATION IN LATVIA

2013

The main aim of the paper is to evaluate the rates of return to investments in education at individual and society level as well. The task of the paper is to provide detailed analysis and estimation of the variables which impact the private and social rates of return. It is based on Professor Angel de la Fuente methodology complemented by Mincer earnings function and non-parametric DEA (Data Envelopment Analysis) method to estimate world technological frontier and the technological gap. For this purpose the authors build the matrix with respective years of schooling depending from level of schooling and birth of year taking into account the differences in schooling system since 1940ties. Th…