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Over the past decade, biofuels production in the European Union and the United States has boomed – much of this due to government mandates and subsidies. The United States has now surpassed Brazil as the world's leading producer of ethanol. The economic and environmental impact of these biofuel programs has become an important question of public policy. Due to the complex intersectoral linkages between biofuels and crops, livestock as well as energy activities, CGE modeling has become an important tool for their analysis. This chapter reviews recent developments in this area of economic analysis and suggests directions for future research.

This chapter uses a global trade model, supplemented with household survey data, to explore the potential impact of ASEAN trade liberalization on poverty in Cambodia, Lao PDR, Thailand, and Vietnam. Our tentative results suggest that ASEAN liberalization is likely to bring substantial gains to the region and lead to significant reductions in poverty. In a simulation of full removal of intra-ASEAN tariffs, we find 320,000 people are moved out of extreme poverty, with a further 1.4 million lifted above the $2 per day poverty line. Poverty reductions are particularly significant in the case of agricultural and rural diversified households and for Cambodia. Under broader ASEAN+3 and ASEAN+6 liberalizations, we find a similar pattern of poverty reduction and the overall reduction in poverty is much higher.

Computable general equilibrium, or CGE, is a well-established numerical simulation technique for evaluating the economy-wide effects of changes in an economic system. It has become very widely used throughout the economics discipline, but is perhaps employed most frequently in the analysis of changes in international trade policy, where changes in tariffs and other taxes are often large and almost always involve multiple sectors and/or regions simultaneously. CGE methods, while certainly not without their limitations, have proved very effective at tracking the myriad of feedback and flow-through effects associated with new regional trading agreements and multilateral trade reforms, and have provided a consistent mechanism of analyzing the effects of changes in trade policy and related areas on a diverse range of economic outcomes.

Contemporary literature reveals that, to date, the poultry livestock sector has not received sufficient research attention. This particular industry suffers from unstructured supply chain practices, lack of awareness of the implications of the sustainability concept and failure to recycle poultry wastes. The current research thus attempts to develop an integrated supply chain model in the context of poultry industry in Bangladesh. The study considers both sustainability and supply chain issues in order to incorporate them in the poultry supply chain. By placing the forward and reverse supply chains in a single framework, existing problems can be resolved to gain economic, social and environmental benefits, which will be more sustainable than the present practices.

The theoretical underpinning of this research is ‘sustainability’ and the ‘supply chain processes’ in order to examine possible improvements in the poultry production process along with waste management. The research adopts the positivist paradigm and ‘design science’ methods with the support of system dynamics (SD) and the case study methods. Initially, a mental model is developed followed by the causal loop diagram based on in-depth interviews, focus group discussions and observation techniques. The causal model helps to understand the linkages between the associated variables for each issue. Finally, the causal loop diagram is transformed into a stock and flow (quantitative) model, which is a prerequisite for SD-based simulation modelling. A decision support system (DSS) is then developed to analyse the complex decision-making process along the supply chains.

The findings reveal that integration of the supply chain can bring economic, social and environmental sustainability along with a structured production process. It is also observed that the poultry industry can apply the model outcomes in the real-life practices with minor adjustments. This present research has both theoretical and practical implications. The proposed model’s unique characteristics in mitigating the existing problems are supported by the sustainability and supply chain theories. As for practical implications, the poultry industry in Bangladesh can follow the proposed supply chain structure (as par the research model) and test various policies via simulation prior to its application. Positive outcomes of the simulation study may provide enough confidence to implement the desired changes within the industry and their supply chain networks.

As the workforce is aging and becoming increasingly age diverse, successful aging at work has been proclaimed to be a desirable process and outcome, as well as a responsibility of both workers and their organizations. In this chapter, we first review, compare, and critique theoretical frameworks of successful aging developed in the gerontology and lifespan developmental literatures, including activity, disengagement, and continuity theories; Rowe and Kahn’s model; the resource approach; the model of selective optimization with compensation; the model of assimilative and accommodative coping; the motivational theory of lifespan development; socioemotional selectivity theory; and the strength and vulnerability integration model. Subsequently, we review and critically compare three conceptualizations of successful aging at work developed in the organizational literature. We conclude the chapter by outlining implications for future research on successful aging at work.

Research on perceptions of organizational politics has mostly explored the negative aspects and detrimental outcomes for organizations and employees. Responding to recent calls in the literature for a more balanced treatment, we expand on how positive and negative organizational politics perceptions are perceived as stressors and affect employee outcomes through their influence on the social environment. We propose that employees appraise positive and negative organization politics perceptions as either challenge or hindrance stressors, to which they respond with engagement and disengagement as problem-focused and emotion-focused coping strategies. Specifically, employees who appraise the negative politics perceptions as a hindrance, use both problem- and emotion-focused coping, which entails one of three strategies: (1) decreasing their engagement, (2) narrowing the focus of their engagement, or (3) disengaging. Although these strategies result in negative outcomes for the organization, employees’ coping leads to their positive well-being. In contrast, employees appraising positive politics perceptions as a challenge stressor use problem-focused coping, which involves increasing their engagement to reap the perceived benefits of a positive political environment. Yet, positive politics perceptions may also be appraised as a hindrance stressor in certain situations, and, therefore lead employees to apply emotion-focused coping wherein they use a disengagement strategy. By disengaging, they deal with the negative effects of politics perceptions, resulting in positive well-being. Thus, our framework suggests an unexpected twist to the stress process of politics perceptions as a strain-provoking component of employee work environments.