• Journal of Teachers' Pension
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• v.4
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• pp.57-90
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• 2019

본 연구는 사학연금의 장기적 재정건전성을 확보하기 위한 재정추계 및 정책평가 방법에 관하여 논의한다. 먼저 재정안정화 시나리오의 설정에 있어서 기간간 예산제약식을 이용하여 장기적으로 균제상태(steady state)를 달성할 수 있는 납부율 및 급여율의 선정이 어떻게 이루어질 수 있는지 살펴본다. 또한 재정추계에 있어서 정책 변화에 따라 개인들의 행동 패턴이 달라질 가능성이 있음을 강조하고, 조기퇴직 결정에 관한 캘리브레이션을 통해 재정추계에서 내생성에 대한 고려가 어떻게 이루어질 수 있는지 예시한다. 마지막으로 힉스 보상의 개념에 기초하여 안정화 정책에 대한 평가가 연금 재정지표에 미치는 효과만이 아니라 가입자 / 수급자의 후생에 미치는 영향까지 같이 고려하여 이루어질 필요가 있음을 설명한다.

• Proceedings of the KIEE Conference
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• 2009.07a
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• pp.577_578
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• 2009

본 연구는 재무적 송전권을 고려한 경쟁적 발전시장을 모형화하고 재무적 송전권 소유자에 따른 균형을 계산한다. 그리고 사회적 후생이 최대로 나타나는 송전권 소유자를 선로조류 분배계수를 활용하여 예측한다.

• The Journal of the Korea Contents Association
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• v.14 no.6
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• pp.174-185
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• 2014

The purpose of this paper is to investigate how the employee benefits be related to the employees' organizational commitments through life satisfaction. There are four types of employee benefits: holidays, family-friendly benefits, financial supports for future, and insurance supports for medical care. The results show that 3 types of benefits(holidays, family-friendly benefits, financial supports for future) are significantly associated with life satisfaction. Holidays and family-friendly benefits are positively related to employees' organizational commitments, too. The findings further reveal that life satisfaction is full mediating factor between financial supports for future and organizational commitment. In case of holidays, family-friendly benefits, life satisfaction is partially mediated to organizational commitment. Findings are discussed in terms of the importance of life satisfaction through employee benefits.

• Journal of the Korean Regional Science Association
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• v.31 no.2
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• pp.63-77
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• 2015

Effects of shifting trend from Chonsei to monthly-rent and the changes in rental housing prices upon the welfare of tenants has been analyzed. In 2014, welfare of tenants has been found to be decreased by 660 billion Korean Won due to the change in rental housing prices. From the point of view of the welfare of tenants, it has been found that monthly-rent stabilizing policies are 1.47 times more effective than Chonsei price stabilizing policies. The effect of monthly-rent stabilizing policies has been found to be increased with the increase in the proportion of monthly-rent transaction, the decrease in the speed of the shifting trend from Chonsei to monthly-rent, the decrease in interest rate, the decrease in the proportion of variable deposit in monthly-rent, the decrease in the proportion of debt in Chonsei deposit. These findings indicate that the relative importance of monthly-rent stabilizing policies will be increased in the future.

• KDI Journal of Economic Policy
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• v.12 no.4
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• pp.97-111
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• 1990

This paper examines the effect of redistributive inheritance tax on income distribution and social welfare. The model used here is the Overlapping-Generations Model consisting of individuals with different bequest motives where the lifetime income distribution in each cohort is determined endogeneously by the dynamic bequest process. It is shown that the introduction of redistributive inheritance tax can improve the vertical equity in the sense that the increase in tax rate reduces the coefficient of variations of intra-cohort income distribution in steady-state. However, it is also shown that, the effect on social welfare, when measured by Benthamite SWF, is uncertain in general. The numerical simulations show that, in spite of its equity-enhancing effect, the tax increase can actually lower the steady-state social welfare within the plausible range of parametric values, through the long-run output effect as well as the deadweight welfare loss incurred by tax distortion. Hence, the problem of equity-efficiency trade-off can arise in this case. However, if both the market interest rate and the elasticity of marginal utility in individual's preference function are sufficiently high, it is shown to be possible that the steady-state social welfare is enhanced by the introduction of inheritance tax.

• International Area Studies Review
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• v.18 no.3
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• pp.231-248
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• 2014

The relationship between market structure and social welfare outcomes has received considerable critical attention in the field of competition policy research. In particular, it is necessary to study in greater depth the impact of market power on social welfare in the telecommunications industry, which is highly likely to form a monopolistic market structure. This is because, when market powers are concentrated on few upper carriers, there are negative effects on social welfare due to an excess of profits. Against this background, the present study investigates the relationship between the market structure of the mobile communications industry (the level of market power) and social welfare outcomes (the retail rate cut) through an international comparison. The results demonstrate that both the market structure and competition status of the Korean market have had significant gaps in global trends. It also points out that the monopolistic market structure (when the leading provider has more than 50% of the market share) has significantly negative effects on consumer welfare (the retail price cut). In addition, the findings of this study suggest that the direction of competition policy should focus on not only improving market concentration(HHI), but also on mitigating the monopoly of power of a dominant operator.

• Korean Journal of Social Welfare Studies
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• v.42 no.4
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• pp.389-412
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• 2011

The purpose of this study is to closely examine causality on the married-working women's depression. For this, the analytical materials were used the primary Seoul Metropolis Welfare Panel survey data. 507 married-working women in their 20s~50s were selected among survey subjects of Seoul Metropolis Welfare Panel data. The analytical method was used the structural equation model. As a result of analysis, it could be known that the path of perfect mediating effect in depression was formed after passing through the benefits satisfaction and the marital happiness from gender role attitude in the married-working women and that the benefits satisfaction has the partial mediating effect between depression and marital happiness. Suggesting a plan for getting rid of depression in the married-working women based on the results of this study, first of all, the married-working women's depression is greatly accredited to what our society regards domestic work yet as woman's role. Thus, the policy-based measure is demanded that can support for working women to be possibly compatible in work and family life and that can induce men's participation in household affairs and child-rearing in such context. Second, it was indicated that the more the married-working women adhere strictly to the gender role attitude of traditionalism, the lower result the marital happiness and benefits satisfaction have. Considering this, a plan for activating welfare system and family-friendly system is demanded that can change gender role value in traditionalism, which is being left in our society. Third, to promote marital happiness that has great influence upon the married-working women's depression, there is a need of seeking a plan, which further intensifies the family services including the marital education and the parent education.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.18 no.10
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• pp.1483-1494
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• 1993

Most studies analyse the frequecny polities intuitively based on the assumptin that there is no question in the frequency regulation by the government. But this paper started from the concept of frequency as economic goods. This paper conclude that frequency regulation by the government is needed to redistribute the economic surplus causing excessive demand. There are five methods in the frequency assignment-comparative healing, auction, lottery, Joint consortium and pioneer preference. The five methods are studied form the view of welfare economics and the respective political Implications are proposed in this paper.

• Environmental and Resource Economics Review
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• v.25 no.3
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• pp.351-376
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• 2016

This study examines optimal emission taxes and welfares in mixed duopoly markets where public and private firms produce differentiated goods and emit pollutions. Both comparing quantity and price competitions and comparing simultaneous and simultaneous games provides the followings findings: First, irrespective of competition modes between quantity and price competitions or simultaneous and sequential games, the optimal emission tax is always lower than marginal environmental damage. Second, emission tax under private leadership is the highest in quantity competition while that under public leadership is the highest in price competition. Third, environmental damage under Cournot and private leadership is worsened in quantity competition while that under public leadership is worsened in price competition. Finally, welfare under Bertrand and public leadership is improved in price competition while that under private leadership is improved in quantity competition.

• Environmental and Resource Economics Review
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• v.19 no.3
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• pp.459-483
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• 2010

This paper constructs the two-part tax-a combined form of output tax and entrance fee-for polluting oligopolists under endogenous entry. In the presence of external damage that varies exogenously with aggregate output, we show that the two-part tax produces the ex post Pigouvian rule and thus achieves the first-best optimum. We also examine a detailed analysis of the impact of the two-part tax on social welfare and government revenues. Finally, when estimation errors exist in the process of regulation, we identify the incentive conflicts between interest groups and analyze the effects of estimation errors on determining optimal tax. In particular, we show that if the regulator takes care of both welfare loss and revenue gain under the proposed two-part tax, not only over-estimation on the slope of external damage but also under-estimation on the slope of market demand should be taken into the policy consideration.