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A smart city is a city that uses information and communication technologies (ICT), smart sensors, actuators and video cameras to better support and optimize the delivery of urban services and to address challenges within city communities. A smart city collects and analyzes data from smart IoT sensors (IoT devices/nodes) and video cameras. The data collected by the sensor nodes can be used to develop applications and systems that benefit the city and the community. Smart city industry is projected to be a $400 billion market by 2021, with 600 cities around the globe expected to generate 60% of the world's GDP by 2025, according to McKinsey research. Many cities have adopted at least one smart city project. However, the majority of cities around the globe are not yet smart cities. The key hurdle is securing the huge fund needed to start a smart city project, and ensuring that there are sufficient resources to sustain the project over time. Because implementing new smart city infrastructure is a large and complex financial undertaking that poses a financial hurdle, specifically, for most of the under-developed countries, a viable and cost-effective strategy is needed to tackle this problem and conquer the digital divide. Building upon and leveraging existing infrastructure is the key to address this problem. This minimizes the cost of technology upgrades and allows for an easier integration process. In addition, leveraging existing infrastructure can give cities a better and quicker return on investment. The main objective of this work is to devise an innovative research and development initiative, which builds upon and leverages ongoing global deployment of smart city and outdoor lighting infrastructures trend, to explore the potential and assess the feasibility of gradually transitioning existing Egypt’s cities infrastructure into truly IoT-enabled smart cities. Specifically, we propose and develop an innovative cost-effective, future-proof, scalable and modular end-to-end device-to-cloud connected outdoor Lighting network infrastructure solution that is based on P2P 4G LTE cellular technology to provide the direct connectivity between lighting poles (IoT devices) and the cloud. The proposed intelligent Lighting solution includes three key building blocks:1) light pole-mounted smart control nodes; 2) cloud-based smart city software solution (NetServ) to remotely monitor, manage, and control the entire lighting infrastructure; and 3) P2P 4G LTE cellular network. In the proposed architecture, smart streetlights serve as the framework for a high- bandwidth, low-latency wireless sensor network, capable of transporting large amounts of data in real-time, while concurrently supporting deployment of a wide range of smart city services.

Abstract Energy consumption of the iron and steel industry is examined in seven countries (Brazil, China, France, Germany, Japan, Poland and the United States) for the period 1980–1991. Using a decomposition analysis based on physical indicators for process type and product mix, we decompose intra-sectoral structural changes and efficiency improvements. Specific energy consumption decreased in all countries except Poland. Efficiency improvement played a key role in Brazil, China, Germany and the US, while structural changes were the main driver for energy savings in France and Japan. We also compare the use of various economic indicators to physical indicators and find that they do not track physical developments well in Poland or the developing countries we studied. In the industrialized countries, value added based energy intensity indicators generally reflect the specific energy consumption better than other economic indicators, although large differences occur in individual years. We found a smaller correlation between other economic indicators (gross output and value of shipments) and specific energy consumption. We conclude that use of physical energy intensity indicators improves comparability between countries, provides greater information for policy-makers regarding intra-sectoral structural changes, and provides detailed explanations for observed changes in energy intensity.

Summary Attention to tenure is a fundamental step in preparation for REDD+ implementation. Unclear and conflicting tenure has been the main challenge faced by the proponents of subnational REDD+ initiatives, and accordingly, they have expended much effort to remedy the problem. This article assesses how well REDD+ has performed in laying an appropriate tenure foundation. Field research was carried out in two phases (2010–2012 and 2013–2014) in five countries (Brazil, Peru, Cameroon, Tanzania, Indonesia) at 21 subnational initiatives, 141 villages (half targeted for REDD+ interventions), and 3,754 households. Three questions are posed: 1) What was the effect of REDD+ on perceived tenure insecurity of village residents?; 2) What are the main reasons for change in the level of tenure insecurity and security from Phase 1 to Phase 2 perceived by village residents in control and intervention villages?; and 3) How do intervention village residents evaluate the impact of tenure-related interventions on community well-being? Among the notable findings are that: 1) tenure insecurity decreases slightly across the whole sample of villages, but we only find that REDD+ significantly reduces tenure insecurity in Cameroon, while actually increasing insecurity of smallholder agricultural land tenure in Brazil at the household level; 2) among the main reported reasons for increasing tenure insecurity (where it occurs) are problems with outside companies, lack of title, and competition from neighboring villagers; and 3) views on the effect of REDD+ tenure-related interventions on community well-being lean towards the positive, including for interventions that restrain access to forest. Thus, while there is little evidence that REDD+ interventions have worsened smallholder tenure insecurity (as feared by critics), there is also little evidence that the proponents’ efforts to address tenure insecurity have produced results. Work on tenure remains an urgent priority for safeguarding local livelihoods as well as for reducing deforestation. This will require increased attention to participatory engagement, improved reward systems, tenure policy reform, integration of national and local efforts, and “business-as-usual” interests.

Abstract Green Total Factor Productivity (GTFP) is a critical indicator for measuring the development and transformation of green economy, with profound implication for achieving a win-win situation of conserving energy, reducing emissions, and developing economy. The promotion of GTFP cannot be separated from the financial support and guarantee provided by financial agglomeration. According to the theory of new economic geography and agglomeration, this study uses location entropy and directional SBM-DEA methods to calculate the financial agglomeration level and GTFP of 283 cities at prefecture-level and above in China from 2003 to 2018. A temporal and individual two-way fixed-effect model and a spatial measurement model are constructed to empirically study direct and spillover impacts of financial agglomeration on GTFP. The empirical results show that financial agglomeration facilitates GTFP growth in a given city, but it significantly reduces GTFP in surrounding areas of the city. Divided the cities by their geolocations in eastern, central, and western regions, we find that, in each region, financial agglomeration can significantly promote GTFP of a city but does not have a significant impact on its surrounding areas, indicating a weak spillover effect. Cities with a population of less than 3 million are associated with higher GTFP. Industrial structure, foreign direct investment and human capital play a positive role in GTFP growth, but the role of urban infrastructure construction appears trivial.

The goal of this study is to look into how changes in crude oil prices affect GDP per capita and exchange rate fluctuations.to investigate the influence of crude oil price shocks on GDP per capita and exchange rate movements. This research employed yearly time series data for the price of crude oil, exchange rate (USD/INR), and GDP per capita, from 1990 to 2020. Arithmetical tools such as Descriptive, Unit Root, Granger Causality Test, and OLS Model were applied. The present study discovered a strong bi-directional Granger causality effect of Dubai crude oil prices on exchange rates, as well as a bi-directional Granger influence of exchange rates on WTI crude oil prices. The diagnostic tests were successfully passed by the estimated models. According to the OLS model, the exchange rate was driven only by the price of Dubai crude oil, although the price of WTI crude oil influenced both the GDP per capita and the exchange rate over the research period. The key policy recommendation derived from this analysis is that the Reserve Bank of India (RBI) must depreciate the rupee, first to restore much-needed exchange rate stability, then to stimulate domestic manufacturers, and finally, to attract foreign capital inflows.

A medida que las ciudades de África Oriental sigan creciendo, también lo hará la demanda de carbón vegetal, el combustible urbano preferido de la región, lo que ejercerá una presión cada vez mayor sobre los paisajes rurales donde se produce. ¿Cómo se puede hacer sostenible la producción y el suministro de carbón vegetal? ¿Cuáles son las implicaciones de las políticas y prácticas sostenibles de carbón vegetal para lograr una vía baja en carbono y proteger el medio ambiente? Este documento presenta una investigación de estudio de caso centrada en el condado de Kitui, una de las principales zonas de producción de carbón vegetal en Kenia. El riesgo y la incertidumbre de las políticas sostenibles de carbón vegetal en Kitui se evaluaron utilizando métodos complementarios de talleres con las partes interesadas, entrevistas con informantes y modelos basados en agentes. Este enfoque interdisciplinario combinó la investigación de políticas y el modelado de simulación, donde las perspectivas y los datos locales se incluyeron directamente en el modelado. Estos métodos facilitaron la crítica del comportamiento relacionado con la agencia y la corrupción. Las partes interesadas valoraron la capacidad de acceder a información detallada sobre microinteracciones y considerar el desempeño de las políticas con respecto tanto a los flujos financieros como a la extracción de biomasa. Alors que les villes d'Afrique de l'Est continuent de croître, la demande de charbon de bois – le carburant urbain préféré de la région – exercera une pression croissante sur les paysages ruraux où il est produit. Comment rendre la production et l'approvisionnement en charbon durables ? Quelles sont les implications des politiques et des pratiques de charbon de bois durable pour parvenir à une voie à faible émission de carbone et protéger l'environnement ? Cet article présente des études de cas axées sur le comté de Kitui, l'une des principales zones de production de charbon de bois au Kenya. Les risques et l'incertitude des politiques de charbon de bois durable à Kitui ont été évalués à l'aide de méthodes complémentaires d'ateliers avec les parties prenantes, d'entretiens avec les informateurs et de modélisation basée sur les agents. Cette approche interdisciplinaire combinait la recherche sur les politiques et la modélisation par simulation, où les perspectives et les données locales étaient directement incluses dans la modélisation. Ces méthodes ont facilité la critique des comportements concernant l'agence et la corruption. Les parties prenantes ont apprécié la possibilité d'accéder à des informations détaillées sur les micro-interactions et d'examiner les performances des politiques en matière de flux financiers et d'extraction de la biomasse. As cities in East Africa keep growing, so too will demand for charcoal – the region's preferred urban fuel – placing increasing pressure on rural landscapes where it is produced. How can charcoal production and supply be made sustainable? What are the implications of sustainable charcoal policies and practices for achieving a low-carbon pathway and protecting the environment? This paper presents case study research focusing on Kitui County, one of the main charcoal production areas in Kenya. Risk and uncertainty of sustainable charcoal policies in Kitui were assessed using complementary methods of stakeholder workshops, informant interviews and agent-based modelling. This interdisciplinary approach combined policy research and simulation modelling, where local perspectives and data were included directly in the modelling. These methods facilitated critique of behaviour concerning agency and corruption. Stakeholders valued the ability to access detailed information on micro-interactions and consider policy performance regarding both financial flows and biomass extraction. ومع استمرار نمو المدن في شرق أفريقيا، فإن الطلب على الفحم – الوقود الحضري المفضل في المنطقة – سيزيد من الضغط على المناظر الطبيعية الريفية حيث يتم إنتاجه. كيف يمكن جعل إنتاج الفحم وتوريده مستدامين ؟ ما هي الآثار المترتبة على سياسات وممارسات الفحم المستدامة لتحقيق مسار منخفض الكربون وحماية البيئة ؟ تقدم هذه الورقة بحث دراسة حالة يركز على مقاطعة كيتوي، واحدة من مناطق إنتاج الفحم الرئيسية في كينيا. تم تقييم المخاطر وعدم اليقين في سياسات الفحم المستدامة في كيتوي باستخدام طرق تكميلية لورش عمل أصحاب المصلحة ومقابلات المخبرين والنمذجة القائمة على الوكيل. جمع هذا النهج متعدد التخصصات بين أبحاث السياسات ونمذجة المحاكاة، حيث تم تضمين وجهات النظر والبيانات المحلية مباشرة في النمذجة. سهلت هذه الأساليب نقد السلوك المتعلق بالوكالة والفساد. وقدر أصحاب المصلحة القدرة على الوصول إلى معلومات مفصلة عن التفاعلات الصغيرة والنظر في أداء السياسات فيما يتعلق بكل من التدفقات المالية واستخراج الكتلة الحيوية.

This paper analyzes the interplay of policy dilemma in the areas of food security, agricultural subsidies, energy consumption, and the environment in the “glocalization” process of Sri Lanka. It demonstrates that the domestic agricultural and food sector is intricately interconnected with the global economy and world market forces. While this paper gives a primary focus on domestic rice production and wheat import policies, it further examines the environmental consequences and public health issues that are associated with the process of “glocalization” as part of globalization. This “glocalization” has led to a series of intended and unintended externalities for Sri Lanka whose economic integration is irreversibly linked to agricultural and subsidy policies of other food exporting and producing countries of Asia and the United States.

Economists have confined the concept of 'sustainability' to intertemporal distributional equity. We propose a broader definition, combining dynamic efficiency and intergenerational equity, and relate it to two concepts from neoclassical economics: potential Pareto-improvements and inter-personal compensation.