Renewable Energy and Economic Growth

The global commitment to drastically curb greenhouse gas emissions towards a sustainable development is strongly connected to the development and usage of renewable energy (RE), such as solar and wind. Between 2006 and 2016, world's total RE consumption, excluding hydro-electricity, increased by almost 350%, and RE investment grew from US $47 billion in 2004 to 279.8 billion in 2017. The importance of RE has attracted a lot of attention from the economic literature as well, since a growing body of empirical research is investigating the relationships between RE and economic growth. The general outcome is the existence of a positive bi-directional (direct and reverse) link between RE consumption and real GDP, though it also emerges evidence showing no statistically significant relationship. This Chapter provides i) an overview of the recent world's trends of RE production and investment, ii) an extensive and detailed review of the recent advances in the RE-growth empirical literature, highlighting the main methodologies adopted and the main findings emerged.

Renewable Energy and Economic Growth

The global commitment to drastically curb greenhouse gas emissions towards a sustainable development is strongly connected to the development and usage of renewable energy (RE), such as solar and wind. Between 2006 and 2016, world's total RE consumption, excluding hydro-electricity, increased by almost 350%, and RE investment grew from US $47 billion in 2004 to 279.8 billion in 2017. The importance of RE has attracted a lot of attention from the economic literature as well, since a growing body of empirical research is investigating the relationships between RE and economic growth. The general outcome is the existence of a positive bi-directional (direct and reverse) link between RE consumption and real GDP, though it also emerges evidence showing no statistically significant relationship. This Chapter provides i) an overview of the recent world's trends of RE production and investment, ii) an extensive and detailed review of the recent advances in the RE-growth empirical literature, highlighting the main methodologies adopted and the main findings emerged.

Spatial Diversity for CDMA RoFSO Links over M Turbulence Channels with Nonzero Boresight Pointing Errors

A CDMA RoFSO link with receivers’ spatial diversity is studied. Turbulence-induced fading, modeled by the M(alaga) distribution, is considered that hamper the FSO link performance along with the nonzero boresight pointing errors effect. Novel, analytical closed-form expressions are extracted for the estimation of the average bit-error-rate and the outage probability of the CDMA RoFSO system for both directions of the forward and the reverse link. The numerical results show clearly the performance improvement of using spatial diversity, even in the most adverse atmospheric conditions with strong and saturated atmospheric turbulence with enhanced misalignment. Also, the effects of nonlinear distortion, multiple access interference and clipping noise aggravate the performance of the link, where cases with large number of users are taken into account.

Notion of Strategic Control

With strategic control, we understand the special type of strategic control which is aimed to monitoring and evaluation of strategic management process in order to ensure its functioning and progress. In fact, the strategic control is applied to ensure if all the planned results are accomplished during the process of strategic management. The basic purpose of strategic control is to assist senior management in achieving the objectives of the enterprise with the assistance of monitoring and evaluation of strategic management in general, and particularly in the implementation of the selected strategy. Relying on the preliminary explanation, the results of the assessments are reflected in the strategic management of the enterprise environment, the establishment of vision, mission and goals of the strategy and the conversion of strategy into shares. Strategic control in this case appears as a reverse link that provides feedback to determine whether all stages of the process of strategic management and how they function have been implemented in harmony.