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887 items in total found

Journal Articles | 2021

Energy access for marginalized communities: Evidence from rural North India, 2015–2018

Setu Pelz,Namrata Chindarkar, and Johannes Urpelainen

World Development

Rural energy access in India has improved steadily over the last decade. This progress is attributed to national energy reforms that aim to not only expand access to grid electricity and liquefied petroleum gas (LPG) but also to improve quality of access. Considering the historical caste-based energy access disparities unique to the Indian context, how equitable have recent improvements been? Using panel data representative of rural areas in six of India’s poorest states, we apply a linear regression model with caste and year interactions to quantify changes in energy access for historically marginalized Scheduled Caste and Scheduled Tribe (SC/ST) households relative to the all others between 2015–2018. We find that overall, inequities in an SC/ST household’s likelihood to obtain an LPG connection reduced (by 4.6%-points [95% CI: 0.7 to 7.7]). In contrast, overall inequities in grid connection likelihoods remained consistent. Looking beyond binary connection rates, we find that an SC/ST household’s supply improved less in terms of daily supply hours (by 1.42 h [CI: 1 to 1.83]) and monthly outage days (by 1 day [CI: 0.7 to 1.3]). Disaggregate analyses indicate that these broader trends are composed of distinct state-level trends modified by differences in baselines, marginalised population distributions, institutional capacity and accountability. Energy policy reform in India must consider caste-based inequities and take advantage of multi-dimensional supply measurement to encourage equitable and just progress towards sustainable energy access for all sections of the population.

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Journal Articles | 2021

Examining the willingness-to-pay for exclusive use of LPG for cooking among rural households in India

Abhishek Jain,Namrata Chindarkar, and Sunil Mani

Energy Policy

Using unique household-level data from rural areas of six energy-access-deprived states in India, we examine the willingness-to-pay (WTP) for exclusive use of liquefied petroleum gas (LPG) for cooking. We find that awareness about LPG's health benefits and diffusion of LPG within the community are the strongest determinants of WTP for exclusive use of LPG. Among demographic characteristics, only household size is correlated with WTP. Importantly, households exhibit significant price elasticity with regards to exclusive use of LPG. Households with irregular cash flows are less likely to pay for exclusive use of LPG. We find limited evidence supporting a negative association between availability of free biomass and the WTP for exclusive use of LPG. In contrast, higher household expenditure on purchased biomass is positively associated with WTP. Our estimates of mean WTP suggest that they are higher than the current effective monthly cost of subsidized LPG across households. However, they mask variation, and disaggregated estimates suggest that about 40–45 per cent of the households not using LPG as their primary fuel have a lower WTP than the current effective monthly cost of subsidized LPG and hence would need additional support to enable their cooking energy transition.

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Journal Articles | 2021

Ground truthing the cost of achieving the EAT lancet recommended diets: Evidence from rural India

Soumya Gupta, Vidya Vemireddy, Dhiraj K. Singh, and Prabhu Pingali

Global Food Security

In this paper, we quantify the divergence in the cost of current diets as compared to EAT Lancet recommendations at the subnational-level in India. We use primary data on food prices and household food purchases, and secondary data on food expenditures for a period of 12 months in 2018–19. The cost of the EAT Lancet dietary recommendations for rural India ranges between $3.00- $5.00 per person per day. In contrast, actual dietary intake at present is valued at around $1.00 per person per day. In order to get to the EAT Lancet recommendations individuals will have to spend nearly $1.00 per person per day more on each of meat fish poultry, dairy foods and fruits. The deficit in current diets relative to recommendations is marked by seasonal variations driven by volatility in the underlying food prices. This paper extends the evidence base for the affordability of the EAT Lancet diet to a subnational-level in India, using the most recent data on prices and expenditures, over time. We highlight the need for tracking rural markets at the subnational level, over time for their nutritional quality and ability to provide affordable, nutritious diets to the poor. Crop diversification, investments in rural infrastructure and well-functioning markets can move rural India towards more nutrition sensitive food environments.

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Journal Articles | 2021

The hedonic treadmill: Electricity access in India has increased, but so have expectations

Michaël Aklin, Namrata Chindarkar, Johannes Urpelainen, Abhishek Jain, and Karthik Ganesan

Energy Policy

Journal Articles | 2021

Seeking strategic assets within cross-border acquisition waves: a study of Indian firms

Faisal Mohammad Ashan, Mohammad Fuad, and Ashutosh Kumar Sinha

Journal of International Management

There is evidence to suggest that cross-border acquisitions by emerging market firms exhibit a wave-like pattern. In this paper, we examine the timing of cross-border acquisitions with a strategic asset-seeking motive within cross-border acquisition waves. Our findings suggest that emerging market firms are more likely to pursue acquisitions with a strategic asset-seeking motive during the early and decline phases of the wave, and lower during the wave peak. Further, we show that business group affiliation and foreign institutional shareholding moderate the relationship, thereby strengthening the propensity to pursue strategic asset-seeking acquisitions during the early phase of the wave. Our study based on a sample of 312 cross-border acquisitions conducted by Indian firms, provides support for our hypotheses.

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Journal Articles | 2021

Dynamic policies for resource reallocation in a robotic mobile fulfillment system with time-varying demand

Tim Lamballais, Marius Merschformann, Debjit Roy, René B.M. De Koster, Kaveh Azadeh, and Leena Suhl

European Journal of Operational Research

A Robotic Mobile Fulfillment System (RMFS) is an automated parts-to-picker material handling system, in which robots carry pods with products to the order pickers. It is particularly suitable for e-commerce order fulfillment and can quickly and frequently reallocate workers and robots across the picking and replenishment processes to respond to strong demand fluctuations. More resources for the picking process means lower customer wait times, whereas more resources for the replenishment process means a higher inventory level and product availability. This paper models the RMFS as a queuing network and integrates it within a Markov decision process (MDP), that aims to allocate robots across the pick and replenishment processes during both high and low demand periods, based on the workloads in these processes. We extend existing MDP models with one resource type and one process to an MDP model for two resources types and two processes. The policies derived from the model are compared with benchmark policies from practice. The results show that the length of the peak demand phase and the height of the peak affects the optimal policy choice. In addition, policies that continually reallocate resources based on the workload outperform benchmark policies from practice. Moreover, if the number of robots is limited, continual resource reallocation can reduce costs sharply. The results show that optimal dynamic policies can reduce the cost by up to 52.18% on average compared to optimal fixed policies.

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Journal Articles | 2021

Directed fixed charge multicommodity network design: A cutting plane approach using polar duality

Yogesh Agarwal, Yash Aneja, and Sachin Jayaswal

European Journal of Operational Research

We present an efficient cutting-plane based approach to exactly solve a directed fixed charge network design (DFCND) problem, wherein the valid inequalities to the problem are generated using the polar duality approach. The biggest challenge in using this approach arises in constructing the polar dual of the problem. This would require enumerating all the extreme points of the convex hull of DFCND, which is computationally impractical for any instance of a reasonable size. Moreover, the resulting polar dual would be too large to solve efficiently, which is required at every iteration of the cutting-plane algorithm. The novelty of our solution approach lies in suggesting a way to circumvent this challenge by instead generating the violated facets, using polar duality, of the smaller substructures involving only a small subset of constraints and variables, obtained from 2-, 3-and 4-partitions of the underlying graph. For problem instances based on sparse graphs with zero flow costs, addition of these inequalities closes more than 20% of the optimality gap remaining after the addition of the knapsack cover inequalities used in the literature. This allows us to solve the problem instances in less than 400 s, on average, which otherwise take around 1000 s with the addition of only the knapsack cover inequalities, and around 4 hours for the Cplex MIP solver at its default setting.

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Journal Articles | 2021

Impostor phenomenon and discipline-specific experiences of violence in Science, Technology, Engineering, and Mathematics

Devasmita Chakraverty and Meenakshi Rishi

Violence and Gender

Impostor phenomenon (IP) engenders persistent, self-deprecating beliefs of fraudulence for those who cannot internalize success and fear that they have fooled others into overestimating their abilities. Although well documented in science, technology, engineering, and mathematics (STEM), discipline-specific experiences of IP within STEM are not well explored, but could illustrate if there are nuances within STEM disciplines. This qualitative study examined discipline-specific experiences of IP due to academic workplace violence. Semistructured interviews from 34 United States-based, female PhD students were analyzed qualitatively using constant comparative method. Participants were recruited using convenience/snowball sampling for a brief survey and further interviewed based on certain eligibility criteria. Findings suggest that IP related to three types of disciplines, those involving outdoor fieldwork (e.g., geology), those with a predominantly higher number of men (e.g., physics), and those with a predominantly higher number of women (e.g., biology). Academic workplace violence included nonphysical abusive behavior, gender-based harassment, incivility, unwanted sexual attention, abusive supervision, and microaggressions. While those experiencing IP due to workplace violence were all women, perpetrators included men and women in positions of power (e.g., PhD advisors) as well as male peers. Findings enriched our understanding of IP experienced as a result of academic workplace violence.

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Journal Articles | 2021

Global value chains and intermediaries in multi-stakeholder initiatives in Pakistan and India

Peter Lund-Thomsen, Lone Riisgaard, Sukhpal Singh, Shakil Ghori, and Neil M. Coe

Development and Change

Journal Articles | 2021

Sovereign credit ratings, relative risk ratings and private capital flows: evidence from emerging and frontier markets

Supriyo De, Sanket Mohapatra, and Dilip Ratha

Studies in Economics and Finance

IIMA