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The task of choice a heating installation on environmentally friendly fuel and optimum for the price for a country house of the North Western region of 200 sq m was set in article. The thermal pump and the pellet boiler were considered for this purpose. Both devices possess a number of rather similar advantages, which are durability more than 20 years, possibility of installation in a house, environmentally friendly fuel, etc. In conclusion, the authors decided that, it is more favorable and for climatic reasons and according to starting and operational expenses to prefer to the thermal pump a pellet copper.

Backgrounds: Korean society is entering an aging society, and this phenomenon indicates the need for preparation for aging in Korean society. In such a situation, exploring the characteristics of the elderly can be considered important for preparation. The objective of this study is to identify the determinants of medical expenses among older adults in South Korea. The key factors analyzed include food, leisure, and housing expenses, as well as lifestyle choices such as drinking and smoking. Method: Data from the Korean Longitudinal Study of Aging, covering 7374 observations from the years 2018 and 2020, are adopted for statistical analysis. This research explores the inverted-U-shape effect of food, leisure, and housing expenditures on medical costs, grounded in the concepts of diminishing marginal utility and mental accounting. A quadratic panel regression analysis is used to test the hypotheses, controlling for variables such as birth year, gender, and personal assets. Results: The results show that food and housing expenses have an inverted-U relationship with medical expenditures based on diminishing marginal utility and mental accounting as the theoretical foundation. However, leisure expenses, drinking, and smoking do not significantly affect medical expenses. Furthermore, this study identifies the optimal expenditure levels for maximizing medical spending through the first-order condition. Conclusions: These findings provide important insights for the development of policies aimed at improving the financial well-being of older adults in South Korea. Moreover, this study contributes to the literature by applying the concepts of mental accounting and the law of diminishing marginal utility to better understand the financial behavior of older adults.

Many studies use variables from the Compustat database to measure various marketing constructs, yet no clear guidelines detail which metrics correspond with which constructs. Justifications rest mainly on the ready availability of easy-to-use measures that seem related to a particular construct. As a result, various metrics have been utilized to capture the same construct, and the same metric—such as selling, general, and administrative expenses (SGA)—has been applied to capture vastly different constructs. But using SGA inappropriately can lead to biased estimates, questionable support for the hypotheses, and potentially misleading implications for research and practice. To test the validity of SGA for multiple relevant marketing and sales constructs, this study gathers data on benchmark variables from alternative data sources and applies a multitrait-multimethod (MTMM) approach. Results show that, in general, SGA has been applied too liberally in marketing contexts; SGA is an appropriate operationalization only for some constructs. This article provides guidelines for the proper conceptualization and operationalization of marketing constructs.

Over the past four decades, the share of income devoted to health care nearly tripled. If policy is unchanged, this trend is likely to continue. Should Americans decide to rein in the growth of health care spending, they will be forced to consider whether to ration care for the well-insured, a prospect that is odious and unthinkable to many. This book argues that sensible health care rationing can not only save money but improve general welfare and public health. It reviews the experience with health care rationing in Great Britain. The choices the British have made point up the nature of the options Americans will face if they wish to keep public health care budgets from driving taxes ever higher and private health care spending from crowding out increases in other forms of worker compensation and consumption. This book explains why serious consideration of health care rationing is inescapable. It also provides the information policymakers and concerned citizens need to think clearly about these difficult issues and engage in an informed debate.

Using a recently expanded dataset on supplier-customer links, we introduce a dynamic relationship life-cycle hypothesis. We hypothesize that the relation between customer-base concentration and profitability is significantly negative in the early years of the relationship, but becomes positive as the relationship matures. The key driver of this dynamic is the customer-specific investments that the relationship entails. These investments result in larger fixed costs, greater operating leverage, and a higher probability of losses early in the relationship, but can significantly benefit the firm as the relationship matures. Although many of these money-losing firms in early-stage relationships were not studied in Patatoukas (2012), we find a market reaction to increases in customer concentration similar to that in his paper. This result provides powerful confirmatory evidence of the value of customer concentration. We document one of the intangible benefits of customer concentration, technology sharing, and show how this benefit increases as the relationship matures.

The influence of subjective health and life satisfaction among disabled individuals is unknown. The purpose of this study was to determine the impact of food and recreation expenditure on subjective health and life satisfaction among disabled individuals in Korea. Data from the Panel Survey of Employment for the Disabled from 2016–2018 was utilized. Econometric analyses, least squares, fixed effect, and random affect models were applied. Results showed that monthly food and recreation cost exerted an inverted U-shaped impact on both subjective health and life satisfaction. These findings have policy implications showing a relationship between social and economic variables and health outcomes. This study also sheds light on the literature by clarifying the relationship among four attributes employing the disabled.

This study examines the impact of research and development (R&D) expenditures, training expenditures, and entertainment expenditures (business promotion expenditures) on firm value in the Korean electronics and metal industry. Extending the theoretical foundation of James March’s exploration and exploitation theory, this study analyzes the impact of R&D and training investments on firm value to explore new capabilities from a long-term perspective, and the impact of entertainment costs on firm value to achieve short-term organizational goals. Using Tobin’s Q methodology, which uses the ratio of a firm’s market value to its asset replacement cost as a proxy for firm value, this study finds the relationship between these types of expenditures and firm value. The analysis finds that R&D expenditures and training expenditures are significantly correlated with increases in firm value, suggesting that these investments play an important role in enhancing a firm’s competitiveness and performance. On the other hand, while we hypothesize that the balance of exploration and exploitation within an organization will affect firm value, we find that entertainment expenditures, which are business promotion expenditures, do not show a significant relationship with firm value. This suggests that these expenditures by companies in Korea’s electronics and metals industry contribute to the achievement of the organization’s short-term goals but do not have a significant impact on firm value. These findings suggest that resource allocation in the electronics and metal industries where technological innovation is important should be more heavily weighted toward investments in R&D and training for long-term exploration in order to increase firm value. To increase firm value, firms should prioritize investments that drive sustainable growth and enhance competitive advantage. This research allows for a deeper examination of how different types of costs contribute to firm value and underscores the need for strategic clarity in resource allocation decisions.

We propose entertainment and travel costs (ETC) expenditures as a measure of corruption in Chinese firms. These expenses are publicly reported in firms’ accounting books, and on average they amount to about 3 percent of a firm’s total value added. We find that ETC is a mix that includes grease money to obtain better government services, protection money to lower tax rates, managerial excesses, and normal business expenditures to build relational capital with suppliers and clients. Entertainment and travel costs overall have a significantly negative effect on firm productivity, but we also find that some components of ETC have substantial positive returns to firms.