scholarly journals Methods for management of investment energy-saving projects

2020 ◽  
Vol 17 (4) ◽  
pp. 252-256
Author(s):  
A. E. Stahov ◽  
◽  
S. Yu. Kadokova ◽  
A. A. Andreenko ◽  
◽  
...  
Keyword(s):  
Mathematical Method ◽  
Optimal Design ◽  
Energy Saving ◽  
Thermal Protection ◽  
Marginal Utility ◽  
Economic Aspects ◽  
Investment Projects ◽  
Study Results ◽  
Energy Service ◽  
Diminishing Marginal Utility

The article presents the study results of organizational and economic aspects of managing energy-saving investment projects. The requirements for the energy service construction contract are specified. The authors propose an economic-mathematical method for determining the optimal design of thermal protection of buildings taking into account the law of diminishing marginal utility.

scholarly journals The implementation of energy-service contracts in the Republic of Sakha (Yakutia) as a tool to reduce government spending: experience and prospects

2018 ◽  
Vol 245 ◽  
pp. 06015
Author(s):  
Egor Slobodchikov ◽  
Lidiya Baisheva ◽  
Vladimir Syromyatnikov
Keyword(s):  
Energy Saving ◽  
Government Spending ◽  
Thermal Protection ◽  
Economic Effect ◽  
Public Enterprises ◽  
High Quality ◽  
Service Market ◽  
Service Contracts ◽  
Energy Service ◽  
The Republic

The article analyses the results of implementation of the energy-service contracts in the Republic of Sakha (Yakutia). A review of the Russian energy service market has been completed. Real savings of energy carriers according to metering devices in public enterprises, indicating the effectiveness of the technologies used, have been achieved. The used energy-saving technologies and solutions that allow one to achieve economic effect are considered. It is established that the existing mechanism of energy service allows the renovation of buildings with high-quality engineering support and high thermal protection of the shell.

Income or Culture? Examining the Determinants of Subjective Wellbeing in an International Sample

2019 ◽  
Author(s):  
Siddharth Garg
Keyword(s):  
Online Survey ◽  
Subjective Wellbeing ◽  
Regression Coefficient ◽  
Marginal Utility ◽  
Economic Class ◽  
Income Groups ◽  
Significant Difference ◽  
The World ◽  
Diminishing Marginal Utility ◽  
The Relationship

Objective: The aim of this paper was to examine the relationship between income, subjective wellbeing, and culture among people from a higher socio-economic class across the world. Rationale: Ed Diener proposed the law of diminishing marginal utility as an explanation for differences in subjective wellbeing among different income groups across different countries (Diener, Ng, & Tov, Balance in life and declining marginal utility of diverse resources, 2009). Thus, people with higher incomes would experience less subjective wellbeing due to income, and culture should emerge as a significant predictor. Method: Data from this study came from another study (https://siddharthgargblog.wordpress.com/2019/07/14/love-for-money/). I used an online survey to collect data on annual income in US dollars, subjective wellbeing (WHO-5), and country of residence (Indicator of Culture). 96 responses (Indians = 24, Foreigners = 72) were entered in IBM SPSS and a regression analysis was conducted. The raw dataset used in this study can be found at https://doi.org/10.6084/m9.figshare.8869040.v1Results: ANOVA showed a significant difference (p < 0.05) between Indians and foreigners on levels of subjective wellbeing. Linear regression shows the regression coefficient of culture to be significant (Beta = -.254, p = .014) but the regression coefficient of income was not found to be significant. The overall model was found to explain 8.2% of the variance in wellbeing.Conclusion: The sample of this study is too small to make any kind of generalization; it does lend a little bit of support to the idea of diminishing marginal utility of income on subjective wellbeing and provides a rationale for further research.

Energy saving in the tissue industry: technical and economic aspects of a case study

2006 ◽  
Vol 14 (2) ◽  
pp. 185-193 ◽  
Author(s):  
R. Gabbrielli ◽  
C. Medeot ◽  
D. Miconi
Keyword(s):  
Energy Saving ◽  
Economic Aspects

scholarly journals The Shapiro-Stiglitz Model with Non-constant Marginal Utility

2017 ◽  
Vol 1 (1) ◽  
pp. 36-48
Author(s):  
Joseph S. K. Wu ◽  
Chi Pui Ho
Keyword(s):  
Utility Function ◽  
Unemployment Rate ◽  
Marginal Utility ◽  
Efficiency Wage ◽  
Generalized Model ◽  
Factors Affecting ◽  
Secular Decline ◽  
Diminishing Marginal Utility

Abstract The Shapiro-Stiglitz model plays an important role in the employment theory. Woodford pointed out the theoretic limitation of the linear worker's utility function in that model. He questioned the model's implication of the secular decline in the unemployment rate when such rate was in fact trendless. He proposed to resolve this by allowing diminishing marginal utility of income. In this paper, the Shapiro- Stiglitz model is generalized using a nonlinear utility function implicit in the Stiglitz Efficiency-wage paper, thus linking these two well-known models. The nonlinear utility function in this generalized model not only allows for diminishing marginal utility of income but also allows for the analysis of parameters representing various factors affecting the secular unemployment rate. In particular, we can specify the condition under which the diminishing marginal utility can cause such rate to be trendless.

scholarly journals Liquid mixtures separation and heat consumption in the process of distillation

2021 ◽  
Vol 16 (1) ◽  
pp. 7-15
Author(s):  
M. K. Zakharov ◽  
A. V. Egorov ◽  
A. A. Podmetenny
Keyword(s):  
Mathematical Models ◽  
Energy Saving ◽  
Internal Energy ◽  
Initial Mixture ◽  
Liquid Mixtures ◽  
Heat Consumption ◽  
Reflux Ratio ◽  
Component Distribution ◽  
Study Results ◽  
Internal Energy Saving

Objectives. The aim of this study is to investigate different distillation modes of a binary ideal mixture and determine how various factors affect heat consumption in the column boilers. In addition, it intends to assess the difficulty of separating mixtures. Our research is based on analyzing the characteristics of vapor-liquid equilibrium.Methods. To conduct our study, we used a graphic-analytical tool to calculate the distillation process of a binary mixture and mathematical models based on the Aspen Plus software package along with DSTWU, RadFrac, and the Sensitivity module. We also used the Peng-Robinson equation (PENG-ROB) to determine the liquid-vapor equilibrium.Results. We employed the graphical method and mathematical models to obtain the operation parameters of two column variants for the distillation of binary ideal benzene-toluene mixtures. In each variant the initial mixture contained the same amount of the low- and high-boiling component. The number of plates in the column sections, reflux ratio, energy consumption, and indicators of internal energy saving were determined.Conclusions. Study results show that using the coefficient of the component distribution between the vapor and liquid phases is a promising method for preliminary assessments of the separation difficulty and measurements of the expected heat consumption in the boilers of columns. Comparison studies showed that the heat consumption in the boiler decreases as the internal energy saving in the columns increases.

scholarly journals The Nature of Risk Preferences: Evidence from Insurance Choices

2013 ◽  
Vol 103 (6) ◽  
pp. 2499-2529 ◽  
Author(s):  
Levon Barseghyan ◽  
Francesca Molinari ◽  
Ted O'Donoghue ◽  
Joshua C Teitelbaum
Keyword(s):  
Loss Aversion ◽  
Structural Model ◽  
Marginal Utility ◽  
Unobserved Heterogeneity ◽  
Risky Choice ◽  
Probability Weighting ◽  
Disappointment Aversion ◽  
Diminishing Marginal Utility ◽  
Standard Risk ◽  
Small Probabilities

We use data on insurance deductible choices to estimate a structural model of risky choice that incorporates “standard” risk aversion (diminishing marginal utility for wealth) and probability distortions. We find that probability distortions—characterized by substantial overweighting of small probabilities and only mild insensitivity to probability changes—play an important role in explaining the aversion to risk manifested in deductible choices. This finding is robust to allowing for observed and unobserved heterogeneity in preferences. We demonstrate that neither Kőszegi-Rabin loss aversion alone nor Gul disappointment aversion alone can explain our estimated probability distortions, signifying a key role for probability weighting. (JEL D14, D81, G22)

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