We analyze a drastic price increase in the German auction market for reserve power, which did not appear to be driven by increased costs. Studying the market structure and individual bidding strategies, we find evidence for collusive behavior in an environment with repeated auctions, pivotal suppliers and inelastic demand. The price increase can be traced back to an abuse of the auction’s pay-a...

the air in tehran is one of the most polluted airs in the entire world. because of the air pollution in the great tehran area, morbidity, mortality and symptoms emerge. this study has been conducted for the first time in iran. according to this study the total annual direct medical costs of morbidity estimated at us$ 3258255.48.our work also led to the estimation of an income elasticity of wtp ...

abstract water pricing is a policy instrument for improving water efficiency, reducing water demand, management of the irrigation systems and recovering costs. the underlying principle of water pricing is that it should reflect the opportunity cost of water. in this study, parametric mathematical programming approache were used to estimate the willingness of farmers to pay for groundwater under...

Asthma is a global problem that affects over 300 million people in the world. The main reason of asthma is allergy and atopy. Asthmatic patients are sensitized to allergens that can be resulting asthma attacks. Fungi as an allergen can be sensitized atopic people and present a severe asthma. Fungi have been found in water-damaged homes of asthmatic patients. Allergic asthma is associated with e...

Using a labour process approach, this article examines how workers in three factories China learnt about the workplace-level pay systems governing their employment relationships. By outlining processes through which at work, sheds light on workers, faced with perplexing variable system and managerial control over disclosure, can overcome pathways towards ignorance ultimately challenge communica...

the commentator suggests that it is necessary to extend the classical connotation of  global city which focuses much on the functions of controlling global capital and production. global city should also include the dimensions of the leading role and capacity on health improvements and well-being promotion. the commentator agrees with authors’ assessments about shanghai’s substantial progress o...

The study investigated the constraints to farmers’ intention to pay for private irrigation in Nandom District, Ghana. Using a key informant interviews and semi-structured questionnaires, the study collected data from 236 farmers. Data was analyzed with descriptive and inferential statistics. Kendall coefficient of concordance was used to determine the level of agreement among farmers in ranking...