Fuel subsidies versus market power : is there a countervailing second-best optimum?

Fuel subsidies distort end-use prices below cost, resulting in overconsumption and huge environmental cost. On the other hand, the mark-up over cost due to the exercise of market power results in the social loss of consumer surplus. We open a new line of inquiry into the potential for a market-based solution from these two countervailing forces: can the two offsetting distortions conceivably achieve a second- best optimum? Relying on dynamic panel techniques and gasoline market data for 68 developing countries, we uncover an excessive second-best subsidy offset to market power mark-up on the order of 4.5. Our results indicate that the potential for policy failure strongly exceeds the potential for market failure in our model, and gasoline prices across our sample may not be aligned with vigorous anti-climate change policy

Three essays on rebound effects

This thesis investigates three major aspects of energy consumption rebound effects (RE) in three papers. More specifically, the issues addressed are (i) the magnitude of economy-wide rebound effect (ii) the role of energy policy instruments in mitigating it and (iii) its channels of impact. The research begins with the estimation of cross-country economy-wide rebound effects for a panel of 55 countries over the period 1980 to 2010. A two-stage approach is utilized in which energy efficiency is first estimated from a stochastic input distance frontier (SIDF). The estimated energy efficiency is then used in a second stage dynamic panel model to derive short-run and long-run RE for an array of developing and developed countries. The cross-country point estimates indicate substantial RE magnitudes across sampled countries during the period under consideration, although a positive and encouraging finding is the declining RE trend across most of the sampled countries during the study period. The second paper contains an RE benchmark for 19 EU countries, as well as an investigation of the effects of two energy policy instruments (energy taxes and ener-gy R&D) on RE performance over the period 1995 to 2010. The results indicate that RE performance improved over the sample period, reinforcing the results from paper one. In addition, there is also some evidence suggesting that binding market-based instruments such as energy taxes have been more effective in restricting RE than in-direct instruments such as energy R&D during the period under consideration. This is consistent across both estimated model specifications. An important observation from the first essay is the slightly larger average RE across the non-OECD countries. For this reason, the last empirical chapter evaluated the channels through which RE stimulated energy use across productive sectors of major developing/emerging economies, namely Brazil, Russia, India, Indonesia and China. To achieve this, the essay relied on duality theory to decompose changes in energy demand into substitution and output effects through the estimation of a trans-log cost function using data spanning 1995-2009. Findings reveal that energy use elasticities across sampled sectors/countries are dominated by substitution effects. One intriguing result that also emerges from this analysis is the role of economies of scale and factor accumulation, rather than technical progress, in giving rise to eco-nomic growth and energy consumption in these countries during the period under consideration

Culture–bound syndromes and the neglect of cultural factors in psychopathologies among Africans

One of the major problems in psychiatric practice worldwide is inability to reach a consensus as regards a globally acceptable classificatory system for the different psychopathologies. Consequently, apart from the WHO’s International Classification of Diseases (ICD) that is expected to be universally applicable there are regional-based classificatory systems in some parts of the world. In Africa, a number of culture bound syndromes (CBS) have been described which have not been given international recognition. The possible consequences of this non-recognition are highlighted in this paper. Unfortunately there are serious constraints such as the relatively small number of psychiatrists on the continent, and inadequate funding for mental health research, which militate against producing an African classificatory system. Nevertheless, it is proposed that reports of African psychiatrists emanating from their research and clinical experience should be accorded adequate recognition in the WHO so as to assign these CBS their rightful placement in the International classificatory system.Key Words: Culture-Bound Syndromes; African Psychiatry; Classification; Recognition

Brain Fag Syndrome – a myth or a reality

The Brain Fag Syndrome (BFS) is defined in the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) as a culture bound syndrome. BFS is a tetrad of somatic complaints; cognitive impairments; sleep related complaints; and other somatic impairments. Prince first described this psychiatric illness associated with study among African students in 1960. There have been questions relating to the nosological status of the syndrome as to whether: BFS is an objective or subjective phenomenon; it is one phenomenon or a variant of other known disorders; it is a mental illness ? These three questions pose challenges to the culture bound/depressive or anxiety equivalent approach to the condition. The scope of this paper is the scope of BFS history from its first reference in the psychological medicine to the most contemporary descriptions in transcultural psychiatry. The conceptual history of BFS is divided into four major perspectives: Traditional medicine, Psychoanalysis, Biopsychological and Transcultural psychiatry. This helps to outline some of the key issues, helps to clarify its nosological status, its present status and helps to set the stage for the future progress. From its conceptual history, BFS as a phenomenon, with its distinct presentations, is subjectively real and isbest classified with the framework of psychiatry, psychology and or sociology. The existence of BFS is evidenced by case as well as epidemiological reports of the condition in different locations. However, its course, response to treatment and outcome deserve more attention than has been given

Prevalence and perceived health effect of alcohol use among male undergraduate students in Owerri, South-East Nigeria: a descriptive cross-sectional study

<p>Abstract</p> <p>Background</p> <p>Alcohol use during adolescence and young adulthood remains a prominent public health problem. Despite growing problems of global alcohol abuse, accurate information on the prevalence and pattern of use in Nigeria remain sparse. This study examines the prevalence and perceived health effects of alcohol use among undergraduate students in Owerri, Nigeria.</p> <p>Method</p> <p>The prevalence and perceived health effects of alcohol was estimated for 482 male undergraduates of four higher institutions in Owerri, South-East Nigeria between October 2008 and March 2009. Information was obtained using a semi-structured, self-administered questionnaire.</p> <p>Result</p> <p>The mean age of the students was 24.7 years. Majority of the respondents confirmed they were current users of alcohol given a prevalence of 78.4%, with twenty-seven percent of them being heavy drinkers (≥4 drinks per day). Reasons given by respondents for alcohol drinking include: makes them feel high (24.4%); makes them belong to the group of "most happening guys" on campus (6.6%); makes them feel relaxed (52.6%) while (16.4%) drinks it because their best friends do. Perceived health impacts of alcohol use among current users include: it enhances pleasure during moment of sex (51.1%), causes drowsiness and weakness (63.8%), may precipitate defective memory and impaired perception (64.3%) and serves as risk factor for most chronic diseases (68.5%).</p> <p>Conclusion</p> <p>High prevalence of alcohol use was established among study groups. Evaluation of full-scale community-level intervention, including community mobilisation and media advocacy aimed at supporting changes in policies on drinking, access and sales of alcohol to young people, could be helpful in reducing the trend.</p

Sexual risk behaviours among patients admitted for substance use disorder and schizophrenia in a psychiatric hospital in Lagos, Nigeria

Researchers have reported that abuse of psychoactive substances play a major role in HIV transmission among drug users while those with a diagnosis of schizophrenia may also be at high risk for HIV infection. This is a cross-sectional and comparative study of consecutive and consenting patients admitted at the Federal Neuropsychiatric Hospital Yaba between April and December 2008, aimed at comparing HIV risk behaviours of patients with substance use disorder and those with schizophrenia, comparing the findings between the two groups and determining the socio-demographic factors in each group associated with such behaviours. The results showed that subjects using psychoactive substances were more involved in sexual activity than those with schizophrenia. Both groups of subjects engaged in HIV risk behaviours such as having multiple casual partners (Substance users 21.5%, schizophrenia 9.5%). Non-use of condom with casual partners (Substance users 25.4%, Schizophrenia 36.7%) and history of sexually transmitted diseases like genital discharge (Substance users 4.0%, Schizophrenia 15.0%) were more in those with Schizophrenia. In conclusion, both groups of patients engaged in high risk sexual behaviours that could predispose them to HIV infection. It was recommended that concerted efforts should be made to establish HIV prevention programmes for both groups of psychiatric patients. Key Words: sexual, risk behaviour, schizophrenia, substance use disorder, inpatients, lagos nigeri

Patterns of User-Initiated Transformation of Dwelling Units in Selected Public Housing Estates in Lagos, Nigeria

This study examined User-Initiated Transformation (UIT) in selected low-income public housing estates in Lagos, Nigeria with a view to providing information that could assist policy makers in more effective housing delivery. It employed a systematic sampling method to select 315 housing units out of 8938 units from 3 purposively selected estates for questionnaire administration, namely: Abesan (156 units), Isolo (128 units) and Iponri estates (31 units). The findings showed that 79.0% (233 out of 295 retrieved questionnaires) of respondents have transformed their houses one way or the other. The majority of residents (78.40%) engaged in transformation by slight adjustment, such as: painting, re-tiling, and installation of shading devices, burglar proof to openings, and fixtures and fittings. It was also observed that 5.28% transformed by addition of more spaces, 1.42 % by addition of doors and windows, 13.21% by addition of services, and 1.68% by total conversion; but there was no indication of transformation by total reconstruction. The study found that 48.3% and 76.0 % of the respondents were not satisfied with the original plan and level of adequacy of spaces of their houses respectively. These findings implied that the predominant patterns of UIT of dwelling units in the study area were due mainly to residents’ dissatisfaction with the level of adequacy of spaces, and with the original plan. The study concluded that greater attention needs to be given to users’ preferences through their participation in the decision-making process relating to the design and delivery of public housing. Keywords: dwelling units, physical transformation, user-initiated transformation (UIT), public housing, Lagos

Cost Management of the Enterprise: Analysis, Regulation and Reduction of Cost in the Organization (OJSC “GZLiN”)

Материалы XXII Междунар. науч.-техн. конф. студентов, аспирантов и молодых ученых, Гомель, 28–29 апр. 2022 г

Detection of potentially gas flaring related pollution on vegetation cover and its health using remotely sensed data in the Niger delta, Nigeria

Detection of potentially gas flaring-related pollution on vegetation cover using remotely sensed data at 11 flaring sites in Rivers State, Nigeria is the emphasis of this research. 21 Landsat 7 Enhanced Thematic Mapper Plus (ETM ), and 4 Landsat 8 Operational Land Imager and Thermal Infrared Sensor (OLI-TIRS) data dated from 21/04/2000 to 05/02/2022 with &nbsp;3 &nbsp;cloud cover were used. Normalized Differential Vegetation Index (NDVI) was retrieved from corrected Landsat 7 bands (1-4), and Landsat 8 bands (2-5). Corrected thermal band was used for the computation of Land Surface Temperature (LST). Change in NDVI (δNDVI450-60)m and LST ( δLST60-450m) were computed. NDVI values at 60 m from the stack show that as the year increases, NDVI values around the stack reduces to almost zero. Linear regression analysis was considered for (δ NDVI450-60)mN against ( δNDVI450-60)mE, (δNDVI450-60)mN against (δNDVI450-60)mS, and (δNDVI450-60)mN against (δNDVI450-60)mW. Only (δNDVI450-60)mN against (δNDVI450-60)mW give statistically significant results at 99 % confidence level (p-value &nbsp;0.0016). (δNDVI450-60)mN,E,S,W against (δLST60-450)mN,E,S,W were considered and results show positive correlation but statistically insignificant. Based on the results of this research, it can be concluded that flaring-related pollution can be detected on vegetation cover using Landsat 7 and Landsat 8 data in the Niger Delta