A Novel Mean Field Game-Based Strategy for Charging Electric Vehicles in Solar Powered Parking Lots

We develop a strategy, with concepts from Mean Field Games (MFG), to coordinate the charging of a large population of battery electric vehicles (BEVs) in a parking lot powered by solar energy and managed by an aggregator. A yearly parking fee is charged for each BEV irrespective of the amount of energy extracted. The goal is to share the energy available so as to minimize the standard deviation (STD) of the state of charge (SOC) of batteries when the BEVs are leaving the parking lot, while maintaining some fairness and decentralization criteria. The MFG charging laws correspond to the Nash equilibrium induced by quadratic cost functions based on an inverse Nash equilibrium concept and designed to favor the batteries with the lower SOCs upon arrival. While the MFG charging laws are strictly decentralized, they guarantee that a mean of instantaneous charging powers to the BEVs follows a trajectory based on the solar energy forecast for the day. That day ahead forecast is broadcasted to the BEVs which then gauge the necessary SOC upon leaving their home. We illustrate the advantages of the MFG strategy for the case of a typical sunny day and a typical cloudy day when compared to more straightforward strategies: first come first full/serve and equal sharing. The behavior of the charging strategies is contrasted under conditions of random arrivals and random departures of the BEVs in the parking lot.

Emergence of Socialism Oriented International Economic Order

Winston Churchill had once said that ‘Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy; its inherent virtue is the equal sharing of misery.’ This was the belief that was once upheld staunchly in all its rigidity amongst the majority of the people in the neoliberal world; who believed in their own gospel of free markets and worshipped the deity of deregulation. However, when Covid-19 struck society with ruthlessness, the common people and even the high priests of global capitalism were willing to scrap decades of neoliberal orthodoxy to alleviate the catastrophic effects of the pandemic and the subsequent economic crisis. A conversion was vehemently demanded and socialism was to be their baptism. This paper analyses the journey of socialism from a Pre-Covid-19 society, a Covid-19 riddled society and then its emergence into an internationally observed economic order in a Post-Covid-19 world. For contrary to what Churchill believed, the Covid-19 catalyst, as captured in this paper, resulted in the revelation of the shroud of neoliberalism and the failure of the philosophy of laissez faire, the awakening of ‘class consciousness’ from its slumber of ignorance, and a gospel of collectivism and communal spirit that the working-class were going to take with, moving forward into a socialism oriented Post-Covid-19 society.

Intra-household distribution of resources and income poverty and inequality in Visegrád countries

PurposeThe authors aim to demonstrate the impact of allowing for unequal intra-household distribution of resources on income poverty and income inequality.Design/methodology/approachThe paper applies a collective consumption model to study the intra-household distribution of resources in Visegrád countries (V4). It utilises subjective financial satisfaction as a proxy for indirect utility from individual consumption to estimate the indifference scales within couples instead of the traditional equivalence scale. The European Union Statistics on Income and Living Conditions (EU-SILC) 2013 and 2018 data are applied.FindingsThis study’s results indicate substantial economies of scale from living in a couple that are generally higher than implied by the commonly applied equivalence scale. The sharing rule estimates suggest that at the mean of distribution factors, women receive a consumption share between 0.4 and 0.6; however, some of the results are close to an equal sharing of 0.5. The female consumption share rises with her contribution to household income. Regarding income poverty and inequality, the authors show that both these measures might be underestimated in the traditional approach to equal sharing of resources.Originality/valueThe authors add to the empirics by estimating indifference scales for Czechia (CZ), Hungary (HU), Poland (PL) and Slovakia (SK), countries that have not been involved in previous research.

Management effectiveness positively influences forest conservation outcomes in protected areas in Mexico

Understanding the factors that drive protected area outcomes is critical to increase the success of global conservation efforts. Until recently, our understanding of the influence of management effectiveness has been restricted by the limited availability of standardized management data and study design limitations of prior evaluations. Here we use a quasi-experimental matching approach to test the influence of management effectiveness on forest cover change inside 46 protected areas in Mexico. We test the influence of five management categories, including context and planning, administration and finance, use and benefits, governance and social participation, and management quality, as well as an overall effectiveness score, using a subgroup analysis and an interaction term in post-matching multiple linear regression. Our results show that protected areas with higher management effectiveness have a greater effect on reducing deforestation compared to those with low management effectiveness, but that both types of protected areas experience less forest loss compared to similar unprotected areas. We find this trend in all five of the management categories and the overall score, with administration and finance scores having the greatest effect on forest loss outcomes. Our findings suggest careful design and planning, effective participation from multiple stakeholders and equal sharing of benefits, and sufficient human and financial capital can improve the effectiveness of protected areas in preventing forest loss.

Commentary on “Keep safe: collaborative practice development and research with people with learning disabilities”

Purpose Inspired by the work of the Keep Safe Advisory Group, this paper aims to explain and make the case for co-production as a powerful model for working alongside people with learning disabilities. Design/methodology/approach The collaborative approach of the Keep Safe advisory group is the authors’ springboard for a deep dive into the power and potential of co-production as a model. As organisational leaders – one with and one without a learning disability – the authors draw on their personal experience to argue that co-production is essential to recognising the adulthood of people with learning disabilities. Findings Co-production means the equal sharing of power and responsibility from the start, best served by the leap of faith of a blank agenda. Co-production values different kinds of expertise as complementary – broadly considered as expertise from lived experience and professional expertise. When working co-productively, a deep investment of time to understand people pays dividends in outcomes and everyone’s personal and professional growth. Co-production enriches the lives of everyone taking part. Originality/value Co-production, though common currency in health and social care, remains too rarely understood and practiced. Readers will benefit from this reflective viewpoint, which aims to clarify and deepen what co-production really means. In particular, enabling people with learning disabilities to take responsibility for themselves and others is rarely considered but is presented here as foundational to human maturity and adulthood.

Attitudes towards sharing housework in couple context: An empirical, factorial survey approach

Objective: This study measured and compared the attitudes of German women and men towards sharing total housework, routine housework and non-routine housework in couples. Background: Although attitudes towards gender roles and the notion of separate spheres are important for understanding many aspects of family life, knowledge about situational variations of women’s and men’s attitudes towards housework sharing is limited. Method: Original data from a factorial survey of 1,120 German women and men from 2016 were used to describe variations in the attitudes of women and men towards three sets of housework using multilevel regression models. Results: Women and men expressed their attitudes towards equal sharing of total and routine housework, but non-routine housework was assigned to male partners in couples. Attitudes differed widely according to the context of the couple: In couples with similar economic resources, respondents favored equal sharing of housework, and in couples with unequal arrangements, the partner with fewer resources was tied to more housework and vice versa. Conclusion: When evaluating housework responsibilities, women and men in this study seemed to follow the principles of equity and balanced exchange.