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This paper aims to evaluate the inhibition efficiency of norfloxacin on the corrosion of copper in 1.0 M nitric acid and 0.5 M sulfuric acid solutions.

Evaluation was carried out by electrochemical techniques such as electrochemical impedance spectroscopy and potentiodynamic polarization studies. Scanning electron microscopy was used, and it finally confirmed the existence of the adsorbed film.

The electrochemical measurements showed that norfloxacin has good inhibition efficiency on the corrosion of copper in 1.0 M nitric acid and 0.5 M sulfuric acid solutions. The inhibition action of norfloxacin in both of the corrosive media was observed to be of mixed type but with more of cathodic nature. The temperature dependence of the corrosion rate was studied in the temperature range from 35 to 55°C and the activation energy (E_a) was calculated. The adsorption of norfloxacin molecules on copper surface obeyed Langmuir adsorption isotherm. Studies on the potential of zero charge have been carried out to establish the mechanism of adsorption of the inhibitor onto the metal surface. The thermodynamic parameters such as the adsorption equilibrium constant (K_ads) and the free energy of adsorption (ΔG_ads) were calculated. The value of free energy of adsorption very close to −40 kJmol⁻¹ indicates that the adsorption is through electrostatic coulombic attraction and chemisorption. The decrease in value of E_a with the addition of inhibitor also shows the chemisorption of the inhibitor on the metal surface.

This paper indicates that norfloxacin can act as a good inhibitor for the corrosion of copper in both the acid media.

This paper aims to analyse how financial literacy (FL) is conceptualised and operationalised in the Indian context.

A systematic literature review (SLR) was conducted using the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) protocol. Thirty-six articles published between 2010 and 2020 were considered for analysis. The FL conceptualisation was examined based on knowledge, ability, skill, attitude and confidence elements. The FL operationalisation was analysed using the modified version of the Organisation for Economic Co-operation and Development’s (OECD) Programme for International Student Assessment (PISA) 2012 model for organising the domain for an assessment framework.

The findings indicate that, despite offering operationalisation details of the FL, 13 out of 36 studies did not include a conceptual definition of FL. Of the 23 studies that mentioned a conceptual definition, 87% are primarily focused on the “knowledge” element and only 39% have combined knowledge, ability/skill and attitude elements in defining FL. As in the developed countries, the Indian studies also preferred investment/saving-related contents in their FL measures. The volume of content focusing on the financial landscape is meagre amongst the FL measures used in India and developed countries. The survey instruments of most studies have been designed in the individuals’ context but have failed to measure the extent to which individuals apply the knowledge in performing their day-to-day financial transactions. Further, it was found that 20 out of 36 studies did not convert the FL level of their target groups into a single indicator or operational value.

To the best of our knowledge, this is the first study that explores the FL’s assessment practices in India. Further, this study offers new insights by comparing the contents of FL measures used in Indian studies with those used in developed countries.

Personal financial management is gaining momentum in modern society, as it plays a vital role in shaping the financial behaviour of people looking forward to adequate financial well-being. Hence, people in general and the weaker sections of society in particular are expected to show desirable financial behaviour for achieving individual as well as societal well-being. The present study investigates the impact of socio-economic characteristics on the financial behaviour of migrant workers who have migrated to the state of Tamil Nadu. The primary data were collected using the interview schedule from 200 migrant workers selected using the snowball sampling technique. The results show that migrant workers have mediocre financial behaviour. Furthermore, it is also found that migrant workers’ financial behaviour is not influenced by their socio-economic characteristics, such as gender, age, marital status, family type, and family income. However, the level of education has a significant positive role in shaping the financial behaviour of the migrant workers. The study outlines the need for specially engineered financial education for migrant workers.

In line with global initiatives, the state of Kerala in southern India is actively working towards formalizing its informal solid waste management (SWM) sector. Despite this, there is a dearth of studies on formalization processes, particularly focusing on the conditions of workers within this sector. This study addresses the gap by examining the challenges faced by women workers operating within the formalized framework of Kerala’s SWM sector. It aimed to investigate challenges faced by grassroots women workers in Kerala’s SWM sector during its transition from informal to formal, identifying gaps in the process through their experiences. Using a qualitative methodology, the research gathered data from 10 women workers in the SWM sector in Kozhikode, Kerala, who were part of the Haritha Karma Sena (green task force). Thematic analysis of in-depth interviews revealed two major challenges faced by these women. Firstly, there was a negative societal perception towards them, and secondly, there was a lack of appropriate state response to their needs and requirements. These challenges were attributed to gaps and pitfalls in the formalization process, leading to a lowered socio-economic status for the women, increased vulnerability to health hazards, and societal stigma. The findings underscore the need for significant improvements in the formalization process of Kerala’s waste management sector. The study advocates for targeted policy interventions to enhance the working conditions of SWM workers, emphasizing the importance of expediting and streamlining the formalization process. This, in turn, would contribute to the overall effectiveness of the SWM system in the state.

The COVID-19 pandemic, starting in early 2020, has significantly compromised global commitment to the 2030 Agenda for Sustainable Development Goals, notably affecting areas like food security (SDG 2) and the economy (SDG 8). Informal economy platform employees have been among the most impacted. In India alone, 7.7 million workers in the informal economy have suffered, with nearly 90% of unskilled and semi-skilled workers experiencing income loss. The widespread income loss among a significant portion of the workforce has led to disruptions in demand and supply mechanisms, thereby worsening food insecurity. This study investigates the determinants of the food consumption score (FCS) to serve as an indicator of food security within informal-economy households. A longitudinal survey of 2,830 unskilled and semi-skilled employees, including drivers, domestic workers, delivery personnel, beauticians, street vendors, small business owners, and self-employed individuals, was conducted. The findings show a significant shift towards borderline household FCS during the pandemic, with a sharp decline in daily consumption of dairy products and non-vegetarian items, indicating reduced protein intake. Consuming two or fewer meals per day increases the likelihood of poor FCS, highlighting the need for systematic interventions to ensure three regular meals per day. Moreover, insufficient government support for adequate food intake in informal economy households calls for redesigned assistance programs. Policymakers should prioritize practical solutions, such as community-based food distribution centers and mobile food vans, to ensure the delivery of nutritious food to vulnerable populations in Bangalore.

The chapter explores the implications of digitalization on the informal economy of Ghana, focusing on the agricultural, microcredit, transportation, and retail sectors. The study was designed as a qualitative study with data collected from books, articles, government reports, business reports, and newspapers. The data collected were analyzed using qualitative content analysis. The study argues that in the agricultural sector, e-agriculture initiatives and digital tools have improved farming practices, providing timely scientific knowledge to farmers and increasing yields. The microcredit sector has been transformed through digital financial services, which have expanded financial inclusion, lowered costs, and simplified regulatory compliance. In the transportation sector, digital platforms like Uber and local startups have streamlined operations, improved safety, and created economic opportunities for drivers. Additionally, e-commerce platforms have facilitated stock ordering and delivery for retailers, reducing downtime and formalizing their transactions. These digital innovations are crucial in enhancing the formalization of the informal economy in Ghana, providing numerous benefits for businesses and individuals in these sectors.

The emergence of the gig economy, with the growth of technology and increased use of digital solutions, has been transforming the nature of work and its organisation in different ways. The differences in technical infrastructure, access to the internet, availability of cloud computing, and ownership of digital devices influence how countries manage this transition. Besides promoting economic growth and employment opportunities, the expansion of gig work offers wider possibilities for addressing some of the structural problems that the Indian economy has faced in recent years. In this chapter, we review the nature of the gig economy in the context of informalisation, flexibility, and vulnerability associated with gig work. In many contexts, gig workers are neither formal nor informal; they are independent contractors, enjoying no benefits as formal or informal workers do. We explore the links between gig workers and those workers engaged in the informal economy; both operate with a certain degree of flexibility but are vulnerable to many risks associated with occupation, health, and social problems. The discussion also highlights the importance of making gig work more inclusive by extending its flexible employment options to more women, persons with disabilities, and those from marginalised backgrounds and utilising the gig economy in formalising the economy in general.

This chapter elucidates the wage differential between male and female informal workers in urban labour market by using employment and unemployment survey 61st (2004–2005) round, 68th (2011–2012), and Periodic Labour Force Survey 2019–2020 data of National Sample Survey Office (NSSO) unit level data. This study found that gender inequality not only increased during getting job but also persists after getting job during wage distribution. Based on the Oaxaca–Blinder (OB) decomposition, it is revealed that gender wage inequality is more in the labour market due to the labour market discrimination, that is, unexplained components. Hence, this study helps researcher, policy makers and government to fix the gender wage discrimination issues exist in the Indian labour market. This will enhance economic growth through the rise of the women labour force participation.

With the onset of globalization in developing economies, policymakers express serious concerns about the role of the informal economy, a concern also mirrored in the United Nations (UN) sustainable development goals (SDGs). Numerous attempts have been made to analyse the general equilibrium consequences of globalization in terms of foreign capital inflow on the informal sector in a developing economy. These studies examined the impact of foreign capital inflow through the channels of resource reallocation across sectors and adjustment in the factor and commodity prices. Nevertheless, the efficacy of these channels is contingent upon the assumption of perfectly competitive product markets that is pertinent in the majority of the studies. This chapter attempts to incorporate imperfect competition in the informal economy in a Heckscher–Ohlin-type multi-factor, multi-sector general equilibrium setup. We assume the existence of imperfection in both a homogeneous good-producing industry and a product-differentiating industry and examine how foreign capital inflow in the presence of imperfect competition affects the informal workers, industrial and firm output, product diversity, national income, and welfare. We also analyse how the consequences of foreign capital inflow on the informal economy can vary with the degree of product market imperfection. It is obtained that varying degrees of product market imperfection in the informal economy have only quantitative (magnitude) effects; however, qualitative (directional) effects remain unchanged.