煤炭企业加强产业工人队伍建设方法的探讨

产业工人队伍在企业高质量发展中,发挥着主力军的作用。论文从产业工人队伍建设方法方面进行了探讨和研究。     

Is it still economic to build a new coal-fired power plant in the U.S.? A real option analysis

In the U.S., virtually no new coal-fired power plants have been built in recent years. Both industry experts and academics seem to believe that no rational firm will build a new coal-fired plant. Will such a trend continue in the future? To provide insights into this question, we investigate the optimal decision of an electricity company with an irreversible and deferrable opportunity to build either a new coal-fired or natural gas-fired power plant as its new base-load resource. According to our real option analysis, the optimal decision depends on the location. In the case of the eastern U.S., it is optimal to choose a natural gas plant if a firm is given a choice among a new natural gas plant, a new coal plant and deferring the investment. However, contrary to the common sentiment in the industry and academia, building a new coal plant in the western U.S. is still more economical than building a new natural gas plant in the absence of emission pricing. Furthermore, introducing carbon pricing to western U.S. states, as California did, can substantially increase the probability that a firm will optimally choose a natural gas plant over a coal plant.     

经济新常态下煤炭企业发展战略研究

着眼于当前我国煤炭企业的新环境,我们要转变视角,致力于探索推动我国煤炭行业发展的新途径和新方法,为了更好地保护矿工的合法权益,保障煤炭行业的可持续发展,煤炭企业需要引进一些创新性技术和先进管理理念。论文主要基于关心矿工生命安全和煤炭企业安全发展的角度,对目前我国煤炭企业的发展提出一些思考和策略。     

Elasticity of substitution and technical efficiency: evidence from the US electricity generation

ABSTRACT

The implications of national or regional energy policies for technical efficiency and environmental outcomes in electricity generation depend on fossil fuel input substitution. This study uses state level data to examine fossil fuel (coal and natural gas) substitution in electricity generation under increased availability of natural gas in the United States. We observe that changes in elasticities of substitution from pre-2009 to post-2009 differ across states suggesting that the effects of increased availability of inexpensive natural gas on electricity generation have been spatially heterogeneous. We rely on the observed heterogeneity to assess the effects of fossil fuel input substitution on technical efficiency and CO₂ emissions. The results reveal that state level elasticity of substitution between natural gas and coal has a positive effect on technical efficiency and a negative effect on CO₂ emissions. Therefore, future policy design and analyses should reflect the implications for regional elasticities of fossil fuel substitution and associated environmental outcomes.     

Capital accumulation through studying abroad and return migration

This paper examines the interplays among studying abroad, return migration and capital accumulation, in a dynamic general equilibrium model featuring heterogeneous ability. Households invest in education and make two migration decisions: whether to study abroad and subsequently whether to return home. The model predicts that the highest, middle and lowest-ability people choose respectively permanent migration, return migration and no migration. More interestingly, we find a novel migration cycle: returnees bring back learned-knowledge and over time, capital accumulates, attracting more return migration. Further, the usual “brain drain” in the literature can be turned into “brain gain”, by providing a subsidy to studying abroad and returning home.     

Pure rent taxation and allocation of capital in a two-sector open economy: A long-run analysis

In this paper, the long-run incidence of a tax on pure rent is analyzed in an OLG two-sector small open economy, in which one sector produces a capital good and one sector a consumer good. Contrary to what is obtained in a one-sector closed economy, a land rent tax does not necessarily foster nonhumam wealth accumulation and capital formation. The accommodating scheme for the government budget plays a crucial role for the effects of pure rent taxation. A rent tax stimulates nonhuman wealth if distortionary taxes on wealth or on income from nonland inputs are alleviated. The mechanism spurring capital formation is brought into action, instead, only when the rent tax is matched by a fall in capital taxation or, if the capital sector is capital intensive, by an increase in government spending on the capital good.     

为了指标而竞争*——来自中国煤矿企业的证据#br#

中国矿难治理取得了不可忽视的成就，但总结其成功经验的研究尚显不足。本文认为安全生产的总量指标控制是一种降低中国煤矿企业矿难死亡人数的有效方式。笔者手工搜集了2002—2006年中国煤矿企业矿难死亡人数和省级安全生产控制考核数据，并与工业企业数据库进行匹配，发现单个煤矿事故死亡人数和同地区其他煤矿事故死亡人数之间显著负相关，说明企业间存在指标竞争现象。广义双重差分回归结果显示，在控制指标越少的省份，企业间指标竞争越激烈。异质性分析发现，在超标省份或者主管官员晋升的关键时期，指标竞争更加激烈。最后，单个煤矿企业死亡人数与异省邻市矿难死亡人数不相关，排除了矿难导致监管加强的“威慑效应”。本文的研究结果表明，煤矿安全生产总量指标控制对企业安全生产有显著作用。     

The Role of Inflation Target Adjustment in Stabilization Policy

How and under what circumstances can adjusting the inflation target serve as a stabilization-policy tool and contribute to welfare improvement? We answer these questions quantitatively with a standard New Keynesian model that includes cost-push-type shocks. Our proposed inflation target rule calls for the target to be adjusted in a persistent manner and in the opposite direction to the realization of a cost-push shock, which is essentially a makeup strategy. The inflation target rule, combined with a Taylor-type rule, significantly reduces inflation fluctuations originating from cost-push shocks and mitigates the stabilization trade-off, resulting in a similar level of welfare to that associated with the Ramsey optimal policy.     

资本主义福利国家的必然性、局限性与面临的挑战——基于经济全球化视阈的历史唯物主义诠释和启示

资本主义福利国家的产生和发展是第二次世界大战后资本主义社会应对生产力发展和生产方式变化的自我调整，具有历史必然性，也具有自身局限性：形式上的“国家回归”没有改变资本主义私有制生产关系，无法消除资本主义社会的根本矛盾和经济危机；社会普遍高福利的实现（部分）依赖于凭借显著竞争优势在世界市场上获取的超额利润，福利模式具有排他性和剥削性，不能为落后国家所复制，也不能成为世界福利模式。因而，资本主义福利国家成为发达国家的特权，且当经济危机爆发或出现经济滞胀时，其会采取削减甚至拆除社会福利的措施以追求资本和财富的积累。随着经济全球化发展，资本积累与社会福利的矛盾日益凸显，资本主义福利国家模式面临实践上的可持续性和价值上的普适性双重挑战。借鉴资本主义福利国家的经验教训，后发国家应努力提升“结构的或根本性的竞争力”，寻求经济与社会的平衡发展；中国还应充分发挥国家制度和国家治理体系的显著优势，积极建设国家主导、福利要素多元、福利机制灵活的中国特色社会主义福利社会。     

Functional income distribution,capacity utilization,capital accumulation and productivity growth in Turkey: A post-Kaleckian analysis

The aim of this article is to examine the relation between functional income distribution, capacity utilization, capital accumulation and productivity in Turkey by identifying demand and overall regimes prevalent in the economy. For this purpose, we conducted an empirical analysis using different specifications of the post-Kaleckian model of Hein and Tarassow. This model defines and characterizes an overall regime by endogenizing productivity growth and integrating it into the models in this tradition. Empirical findings show that while the demand regime is wage-led, the overall regime turns out to be unstable in Turkey due to the destabilizing impact of productivity growth. This article contributes to the literature by being the first study that simultaneously identifies the demand and the overall regimes of an economy.