首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 31 毫秒
1.
SOLAR POWER     
This paper describes categories of solar technologies and identijies those that are economic. It compares the private costs of power from solar, wind, nuclear, coal, oil, and gas generators. In the southern United States, the private costs of building and generating electricity from new solar and wind power plants are less than the private cost of electricity from a new nuclear power plant. Solar power is more valuable than nuclear power since all solar power is available during peak and mid-peak periods. Half of the power from nuclear generators is off-peak power and therefore is less valuable. Reliability is important in determining the value of wind and nuclear power. Damage from air pollution, when factored into the cost of power from fossil fuels, alters the cost comparison in favor of solar and wind power. Some policies are more effective at encouraging alternative energy technologies that pollute less and improve national security.  相似文献   

2.
Households’ demand for electricity continues to increase. This trend per se should indicate increased disutility from power outages. Additionally, batteries and other back-up systems have been improved, and the frequency and duration of outages have been reduced in many countries. By comparing the results from two stated preference studies on Swedish households’ willingness to pay (WTP) to avoid power outages in 2004 and 2017, we investigate whether the WTP has changed. The WTP is assessed for power outages of 1- and 4 -h durations, and whether it is planned or unplanned. We find three main differences: (i) the proportion of households stating zero WTP to avoid power outages decreased significantly from 2004 to 2017, meaning that more households are willing to pay to avoid a power outage in 2017 than in 2004; (ii) the overall WTP was considerably higher in 2017 than in 2004, but (iii) the conditional WTP, that is, WTP for those that have a positive WTP for an outage, has decreased. These results have implications for how regulators incentivize and regulate electricity suppliers, because the results suggest that a reliable supply of electricity is of greater importance now than what the literature has suggested.  相似文献   

3.
Our purpose is to answer two questions pertinent to the international transmission of changes in equity values. First, do lead-lag relationships documented in short-horizon (daily) studies continue to hold in longer time (monthly) horizons? Second, does the lead-lag structure remain stable over time? The questions are answered by examining monthly equity returns for nine countries during the 1980s. We find evidence that is somewhat surprising—significant lead-lag relationships among some countries persist in monthly horizons, particularly during the first half of the 1980s. During the second half, the lead-lag relationships are substantially weaker. During the same period, we find that contemporaneous correlations across countries have largely increased, implying greater influence of worldwide factors in determining equity prices.  相似文献   

4.
Abstract.   Examining data for Australia and 101 trading partners that span the years 1989–2000, we find immigrants from nations afforded preference under the White Australia policy exert greater proportional influences on Australian imports from their home countries compared to immigrants from nations not privy to such preference. Immigrants from this latter group of countries influence Australian exports to their home countries proportionally more than do immigrants from the former group. We also find immigrant-trade links vary across disaggregated measures of trade. The results suggest that cultural diversity, affected here by immigration policy, is relevant to a nation's trade patterns.  相似文献   

5.
This paper studies the effects of macroeconomic crises experienced in early adulthood on subjective well-being (SWB) later in life. Using repeated cross-sectional survey data of over 100,000 individuals from 38 countries around the world combined with historical data on macroeconomic circumstances, I find that having experienced a macroeconomic crisis at ages 18–25 is detrimental to SWB. This result is in line with earlier literature that focuses on other individual-level outcomes. However, the analysis presented in this paper reveals that outcomes related to individual’s earnings, employment status, family life, and religion cannot fully explain the lasting effect of macroeconomic crises on well-being. Results on heterogeneous responses show that the negative effect is largest for females and for individuals with low educational attainment.  相似文献   

6.
This innovation assessment addresses the factors that have influenced the exceptionally lengthy industrial technology life cycle of wind electrical power generation since its inception in the late 19th Century. It then applies the recently developed Accelerated Radical Innovation (ARI) Model to understand the dynamics of this innovation compared to those of other major 18th-20th Century innovations.Despite market pull in the late 19th Century to link small DC electrical generators with hundreds of thousands of existing wind mills used for mechanical water pumping, several factors prevented this from happening. These include the intermittent nature of wind electrical generation requiring low cost battery storage and DC-AC conversion, and the shift in the 1890s from DC to superior AC electrical generation making possible economies of scale for delivering AC electricity long distances over the grid from large hydroelectric and coal fired plants. As a consequence, wind generated electricity remained primarily a technological development until the first energy crisis in the 1970s.Development of an extensive science and technology base for wind turbine dynamics, and deployment since 2000 of commercial scale wind turbines (> 1MW) have elevated wind electrical power generation to commercial practicality, as described in two earlier papers by the authors applying technical cost modeling and experience curve projections of cost of energy (COE) to explore the economic viability of large scale wind electricity generation.. Strongly promoted by wind energy communities of practice in Europe, North America and Asia, normative COE projections suggest that by 2020 wind electrical power will be cost competitive, without tax incentives, with electricity from conventional fossil and nuclear fuel sources.Overcoming technological, business, market, societal, networking and political hurdles to date has required 120years of development to establish wind electricity generation as a breakthrough innovation with the capability to capture 20% of the world electricity market by the mid-to-late 21st Century. Further growth and maturation is expected to continue to 2100, corresponding to a projected ≅ 210year overall industry life cycle at market saturation. This finding has profound implications for innovation theory and practice, since the length of this life cycle exceeds by a factor of ≅ 4 the average life cycle diagnosed for five industrial revolutions and four key 20th Century innovations. The new ARI model provides a holistic approach to understanding the dynamics of the industrial technology life cycle for a wide variety of radical innovations as well as wind electrical power.  相似文献   

7.
Does retirement represent a state of relative prosperity or unanticipated hardship? To assess whether individuals are successful in smoothing their well-being across the transition to retirement we analyse measures of subjective well-being (SWB) in the Household, Income and Labour Dynamics in Australia (HILDA) Survey. Specifically, this research examines retirees’ current standard of living, financial security and overall happiness relative to their pre-retirement levels. It is found SWB either improves or remains constant for the large majority of individuals as they retire from the labour force. However, there are significant disparities in changes in well-being with retirement among the group of retirees. In particular, the subset of individuals who are forced to retire early due to job loss or their own health, and who find their income in retirement to be much less than expected, report marked declines in their SWB with retirement.  相似文献   

8.
Although burning fossil fuels has environmental consequences, many countries have switched away from nuclear power in favor of fossil-fuel fired electricity production after incidents at Three Mile Island, Chernobyl, and Fukushima. This study estimates the substitution between nuclear and fossil-fuel fired electricity generation in the United States. Using an event-study framework, we leverage nuclear plant openings from 1970 to 1995 and forced nuclear plant outages from 1999 to 2014. Plant openings (nuclear outages) reduce (increase) monthly net coal-fired generation by approximately 200 GWh, implying a considerable reduction (increase) in emissions. We find that the substitution between nuclear and coal is not one-to-one, as has been assumed in prior literature. After establishing these stylized facts, we explore the potential underlying forces driving the observed substitution between coal and nuclear.  相似文献   

9.
This paper analyses the relative influence of domestic and foreign demand-pull policies in wind power across OECD countries on the rate of innovation in this technology. We use annual wind power generation to capture the stringency of the portfolio of demand-pull policies in place (e.g., guaranteed tariffs, investment and production tax credits), and patent data as an indicator of innovation activity. We find that wind technology improvements respond positively to policies both home and abroad, but the marginal effect of domestic policies is 12 times greater. The influence of foreign polices is reduced by barriers to technology diffusion, in particular lax intellectual property rights. Reducing such barriers therefore constitutes a powerful policy leverage for boosting environmental innovation globally.  相似文献   

10.
Thao Pham 《Applied economics》2013,45(54):5829-5842
Several empirical studies show that renewable energy sources such as wind and solar power, typically supplied at low marginal cost, can cause electricity market prices to fall. Recent theoretical research and simulations also highlight the link between the integration of renewable energy and market performance in an oligopolistic energy market. This article looks at these dynamics in the context of cross-border effects between two highly interconnected electricity markets, France and Germany. Using a rich panel dataset for hourly data from November 2009 to July 2015, I estimate the impact of German wind and solar power production on both prices and market power in the French wholesale market. The findings highlight the importance of coordinating energy policies via joint renewable energy support schemes among interconnected European electricity markets.  相似文献   

11.
Using data for 17 Organisation for Economic Co-operation and Development (OECD) countries over 29 years for 28 industries, this paper estimates industry-wise research and development (R&D) spillovers from the largest R&D investors and the most R&D-intensive industries that contribute 80% of global R&D. In doing so, it tests several assumptions made in the literature, and data rejecting them, proposes a methodology on R&D return estimation devoid of these assumptions. Results show that R&D has substantial spillovers, justifying R&D support policy. Each dollar of R&D generates about 29 cents in spillovers domestically and 4 cents in foreign countries. However, both intra- and inter-industry spillovers vary by industries, implying that the policy of supporting each R&D dollar uniformly across industries is suboptimal. Contrary to industry heterogeneity, the R&D spillovers from an industry do not vary substantially across countries, suggesting that optimal R&D policy across OECD countries might be uniform. An industry-by-industry technology matrix shows that sometimes an idea generates a greater impact on other industries than where it is generated.  相似文献   

12.
The purpose of this paper is to provide a quantitative analysis of innovation and diffusion in the European wind power sector. We derive a simultaneous model of wind power innovation and diffusion, which combines a rational choice model of technological diffusion and a learning curve model of dynamic cost reductions. These models are estimated using pooled annual time series data for four European countries (Denmark, Germany, Spain and the United Kingdom) over the time period 1986–2000. The empirical results indicate that reductions in investment costs have been important determinants of increased diffusion of wind power, and these cost reductions can in turn be explained by learning activities and public R&D support. Feed-in tariffs also play an important role in the innovation and diffusion processes. The higher is the feed-in price the higher is, ceteris paribus, the rate of diffusion, and we present some preliminary empirical support for the notion that the impact on diffusion of a marginal increase in the feed-in tariff will differ depending on the support system used. High feed-in tariffs, though, also have a negative effect on cost reductions as they induce wind generators to choose high-cost sites and provide fewer incentives for cost cuts. This illustrates the importance of designing an efficient wind energy support system, which not only promotes diffusion but also provides continuous incentives for cost-reducing innovations.   相似文献   

13.
The economies of Southeast Asia have undergone several structural changes, including the Asian currency crisis, during the post-Bretton Woods era. We use a time-varying coefficient cointegration model to test for purchasing power parity (PPP) of Southeast Asian currencies and to track changes in purchasing power relationships over time. The main empirical findings are as follows. First, the stability of the relationship between exchange rates and price differentials is strongly rejected. Second, a major structural change occurs at the outbreak of the Asian currency crisis in 1997. Third, when the cointegration vector is allowed to vary with time, we find evidence of a cointegration relationship for four countries in terms of the US dollar and for four countries in terms of the Japanese yen. Therefore, it seems unlikely that Southeast Asian currencies form a “yen bloc.”  相似文献   

14.
Energy poverty is a major problem in the developing world, with nearly 1.3 billion people lacking household electricity. Strikingly, the electrification rate is not only low, but is falling in many countries as population growth outpaces efforts to give more people access to electricity. Seizing the opportunities presented by rapid changes in technology and the availability of renewable energy at continually falling costs, social enterprises have begun to light the darkness and fill in the gap between the public and private provision of electricity. We review the extent of energy poverty and explain why neither the public, nor the private sector has successfully addressed this problem. We also discuss institutional factors that have created an environment conducive to the spread of solar power. To illustrate the social enterprise response, we explain the sector’s three most common approaches to solar electrification. Since the potential benefits of any social innovation revolve around its scalability, we discuss various paths to scale before outlining A.T. Kearney’s “Social Enterprise Accelerator” model as a template for scaling up individual social businesses. To enable greater consistency with an institutional economic framework, we suggest an adaptation of the model. We conclude by highlighting potential benefits and challenges facing solar electrification, including the limits of social enterprise as a stand-alone solution to utility provision.  相似文献   

15.
This paper analyzes how countries’ provision of migrant rights affects potential migrants’ destination choice. Combining data on bilateral migration desires from over 140 origin countries and data on migrant rights in 38 mainly OECD destination countries over the period 2007–2014, we find that potential migrants tend to favour destinations that are more open to the inclusion of immigrants into their society. In particular, better access to and conditions on the labour market as well as access to nationality and to permanent residency significantly increase the perceived attractiveness of a destination country. These results are robust across different specifications and hold for subsamples of origin countries as well as of destinations. Moreover, some results vary across types of respondents. Educational opportunities for migrants, for instance, affect the migration desires of individuals aged 15 to 24, but less so of individuals in other age groups.  相似文献   

16.
《Applied economics letters》2012,19(11):1027-1031
Our study examines the nature of industrial and global diversification for a sample of more than 12?000 firms across 35 emerging and developed countries during the period 1991–2006. Consistent with previous studies, we find that industrial diversification, either alone or combined with global diversification, results in a reduction of firm excess value. Global diversification alone, however, does not exert a significant impact on excess value. In an analysis of the decision to diversify, we find that firms in civil law countries or less developed nations are more likely to diversify, suggesting the greater utility of internal capital markets in economies where it is difficult to raise external capital. We observe that high leverage, larger size, lower levels of growth, R&D, free cash flow, profitability and Tobin's q encourage firms to diversify industrially. Higher values of q, firm size, R&D expenditures, free cash flow and liquidity, but reduced growth rates and profitability are associated with global diversification.  相似文献   

17.
Indices ranking the quality of life in cities based on climatic, environmental and urban conditions have a long tradition in the hedonic literature. In this paper we propose an alternative set of indices based on subjective well-being (SWB) data linked to regional level amenities. SWB indicators provide a direct, self-reported evaluation of life satisfaction and can be used to rank quality of life among different locations in the absence of data on housing prices and wages. Using SWB data in Ireland, we show how to rank quality of life in regions in three different ways: 1) using a simple unconditional average of SWB across locations, 2) conditionally, controlling for personal characteristics of individuals and the environmental amenities in their area and 3) weighting the environmental endowments in each location by the marginal rate of substitution between income and the amenity. The results show a very high correlation between the three indices and suggest that variation in SWB across locations is not random, but is driven to a large extent by the endowment of location-specific amenities across locations.  相似文献   

18.
How do people value freedom of choice? Drawing on economics and psychology the paper provides an hypothesis and empirical evidence on how individuals may value freedom of choice and derive utility from it. It is argued that the degree of perceived control that individuals have over choice – a construct known as the locus of control in psychology – regulates how we value freedom of choice. People who believe that the outcome of their actions depends on internal factors such as effort and skills (the ‘internals’) have a greater appreciation of freedom of choice than people who believe that the outcome of their actions depends on external factors such as fate or destiny (the ‘externals’). We find some evidence in support of this hypothesis using a combination of all rounds of the World and European Values Surveys. A variable that measures freedom of choice and the locus of control is found to predict life satisfaction better than any other known factor such as health, employment, income, marriage or religion, across countries and within countries. We show that this variable is not a proxy of happiness and measures well both freedom of choice and the locus of control. ‘Internals’ are found to appreciate freedom of choice more than ‘externals’ and to be happier. These findings have important implications for individual utility, social welfare and public policies.  相似文献   

19.
In this article we extend the model developed by Bogliacino and Pianta (Industrial and Corporate Change 22 649, 2013, b) on the link between R&D, innovation and economic performance, considering the impact of innovation on export success. We develop a simultaneous three equation model in order to investigate the existence of a ‘virtuous circle’ between industries’ R&D, share of product innovators and export market shares. We investigate empirically – at the industry level – three key relationships affecting the dynamics of innovation and export performance: first, the capacity of firms to translate their R&D efforts in new products; second, the role of innovation as a determinant of export market shares; third, the export success as a driver of new R&D efforts. The model is tested for 38 manufacturing and service sectors of six European countries over three time periods, from 1995 to 2010. The model effectively accounts for the dynamics of R&D efforts, innovation and international performance of European industries. Moreover, important differences across countries emerge when we split our sample into a Northern group – Germany, the Netherlands and the United Kingdom – and a Southern group – France, Italy and Spain. We find that the ‘virtuous circle’ between innovation and competitiveness holds for Northern economies only, while Southern industries fail to translate innovation efforts into export success.  相似文献   

20.
This article presents a global sensitivity analysis of micro determinants of life satisfaction (LS), a subjective well-being (SWB) measure of quality of life, as it relates to economic development. We test 53 micro variables using extreme bound analysis on a pooled cross-section data from the World Value Survey representing 98 countries between 1989 and 2014. Several standard variables frequently included in SWB regressions are controlled for. The test variables are broadly categorized as demographic, personal–economic, individual traits and values, social attitudes and collectivism, social relationships and perceptions of control. We find subjective health status, household income rank, family savings, religiosity, most perceptions of control and several social attitudes and collectivism measures to be universal LS determinants. Generally, the determinants of LS vary by a country’s level of economic development. In particular, we provide suggestive evidence that as countries develop, certain needs are satisfied and stop being important contributors to LS while others take their place.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号