Impacts of world prices transmission to domestic rice markets in rural Iran

This paper attempts to assess the degree to which Iranian rural households have responded to the change in price of imported rice due to exchange-rate unification, and to examine the extent to which the policy has affected the economic welfare of various household income groups, particularly the poor. Utilizing samples of 2472 households selected from national expenditure survey data of 2002 and 2003, Armington and pass-through elasticities were calculated as two measures of substitutability, and are discussed separately for each household group in these areas.     

Competition in Turkish mobile telecommunications markets: Price elasticities and network substitution

This paper estimates demand elasticities for Turkish mobile telecommunications markets. In contrast to most other studies, firm-level data is used to estimate dynamic panel data models including instrumental variable techniques. Both short- and long-run elasticities are calculated, yielding a long-run price elasticity of −0.72 for the post-paid market and of −0.33 for the pre-paid market. The short-run price elasticity is estimated to be −0.36 for the post-paid market and −0.20 for the pre-paid market. In addition, there is evidence of fixed-to-mobile traffic substitution for consumers who use pre-paid cards.     

Institutions and business networks: A comparative analysis of the Chinese, Russian, and West European markets

The paper analyses business networks originating from three markets: Chinese, Russian, and West European. So far, little attention has been given to the fact that business networks in particular markets may be dissimilar because of differences among institutions. The paper advances a model where institutions are assumed to influence five major characteristics of business; (1) the processual aspects of the network, (2) the structural aspects of the network, (3) the function of firms and relationships in the network, (4) the meaning of strategy and planning, and (5) social relationships in the context of inter-firm relationships. The analysis builds on three types of substances of institutions — cognitive, normative, and regulative, which in turn are specified according to different aspects. The cognitive substance of business networks is explored through the aspects of self, time, and causality. The normative substance is explored through the aspects of achieved versus ascribed status, inner versus outer direction, universalism versus particularism, and trust. The regulative substance is specified as an authority system and a sanction system. The analysis demonstrates that, as institutions differ in these three markets, the business among them also differs in terms of the five characteristics, and this variation calls for different strategies for firms operating in these markets.     

Female participation in African labor markets: The role of information and communication technologies

This article investigates the effects of information and communication technologies (ICT) on female labor force participation in a sample of 48 African countries. We specify and estimate linear regression and dynamic panel data models with fixed effects (FE) and system-generalized method of moments (SYS-GMM) estimation over the period 2001–2017. The three main results are that ICT use (mobile phone and internet) significantly stimulates female labor force participation in Africa; this effect is enhanced by financial development and female education; the effect of ICT on female employment in Africa is strongest in the industrial sector. These results remain robust to the provision of social, cultural, and institutional variables.     

A welfare measure of consumer vulnerability to rising prices of food imports in the UAE

The recent and expected continuing rise in food prices has re-ignited concern and discussion in the United Arab Emirates about the country’s vulnerability to food supply shocks. Defining vulnerability as the compensating variation relative to household income, we find that although UAE households in the lowest income quintile spend on food on average less than a quarter of what households in the highest income quintile spend, the former are 3.5 times more vulnerable to rising prices of food imports than the latter.     

Food security implications of staple food substitution in Sahelian West Africa

Low-income households in Sahelian West Africa face multiple shocks that risk compressing their already-low food consumption levels. This paper develops a multi-market simulation model to evaluate the impact of common production and world-price shocks on food consumption of vulnerable groups in Sahelian West Africa. Empirical analysis confirms that poor households bear the brunt of ensuing consumption risks, particularly in closed markets, where trade barriers restrict imports, and the poor find themselves in a bidding war with richer consumers for limited food supplies. In the absence of trade, a drought that reduces domestic rainfed cereal production by 20% would compress already low calorie consumption of the rural poor by as much as 15%, four times as much as other household groups. Conversely, a 50% spike in world rice prices hits the urban poor hardest, compressing calorie consumption by up to 8%.Policy responses need to focus on two basic mechanisms that can help to moderate this pressure – consumer substitution among staple foods and trade. Immediately south of the Sahel, coastal West African countries enjoy higher rainfall, dual rainy seasons, more stable staple food production based on root crops (cassava and yams) as well as frequent double cropping of maize.Our simulation results suggest that regional trade in maize, yams and cassava-based prepared foods like gari and attieké could fill over one-third of the consumption shortfall resulting from a major drought in the Sahel. Increasing substitutability across starchy staples, for example through expansion of maize, cassava and sorghum-based convenience foods, would further moderate consumption pressure by expanding the array of food alternatives and hence supply responses available during periods of stress.     

Consumer protection in the telecommunication sector: A comparative institutional analysis of five African countries

The telecommunications sector has proliferated in recent years, especially in developing countries. However, little attention has been paid to consumer protection issues. As more people get connected to telecommunication networks and competition becomes increasingly fierce, it becomes essential to revamp institutions that ensure consumer protection in the telecommunication markets. This paper analyses the current status of institutions that protect consumers in the telecommunications sector in five African countries from the perspective of three pillars of sound institutional design. The findings indicate that while all cases analysed herein have some form of institution that upholds consumer protection, in most cases, such protection is limited to mobile communications. Furthermore, in most cases, there are only general sanction provisions that are either too weak to bind service providers or that leave overly discretionary powers to regulatory agencies, which can lead to corrupt practices, hence weakening consumer protection. This paper describes current affairs with regard to consumer protection in the telecom industry, identifies its weaknesses, and proposes areas of improvement to attain a healthier telecommunications sector.     

非工资性收入分配：国有部门收入调控的新视角

本文基于"中国居民健康和营养调查"(CHNS)数据,研究所有制性质与非工资性收入分配问题。通过对中国非工资性收入结构和差异格局的长时段考察、研究发现,在津贴、补贴和医疗保险等非工资性收入方面,国有部门都明显高于其他部门,非工资性收入差异造成了我国不同所有制部门间收入差距的扩大,非工资性收入的不平等程度高于工资收入,而且呈不断上升的趋势。进一步利用Panel Data模型及Logit模型分析非工资性收入差异扩大的原因,研究表明,受教育程度、年龄和职业等因素对非工资性收入的影响程度较低,引起非工资性收入差异扩大的主要原因是所有制性质因素。因而,防止非工资性收入差异扩大,规范国有部门非工资性收入应成为当前收入分配制度改革的重点。     

Beyond access: A relational and resource-based model of household Internet adoption in isolated communities

Isolated rural communities face specific challenges associated with their geographical context in the digital inclusion process. Thus, based on a relational and resource-based model as well as diffusion research, this study explored personal, positional factors, as well as material and social resources of household Internet connection in remote communities that received infrastructure access for the first time between 2010 and 2011 in Chile. A face-to-face representative survey conducted in 22 communities revealed that, among personal variables, age and innovative personality played a role in household Internet adoption. Material resources such as income and transport connectivity were also relevant. However, social resources were among the most significant predictors. That is, the presence of children in the household and larger social networks were associated with greater chances of Internet connection.