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3556 items in total found

Journal Articles | 2018

A burnout model of job crafting: Multiple mediator effects on job performance

Vijayalakshmi Singh and Manjari Singh

IIMB Management Review

Studies establish that job crafting, i.e. the proactive changes made in one's work through balancing available job demands and resources, results in various positive outcomes at the individual, job, and organisational levels. This study examines how employees proactively craft their jobs to avoid stress and burnout, and become better performers. We ground our study in the occupational health context of knowledge workers. Structural equation models on data from 268 Information Technology (IT) management professionals demonstrate the coping effect of job crafting in decreasing role stress and burnout, and increasing one's psychological availability, along with multiple mediation effects in improving job performance.

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Journal Articles | 2018

Underlying determinants of health provider Ccoice in urban slums: Results from a discrete choice experiment in Ahmedabad, India

Vilius Cernauskas, Federica Angeli, Anand Kumar Jaiswal, and Milena Pavlova

BMC Health Services Research

Background:

Severe underutilization of healthcare facilities and lack of timely, affordable and effective access to healthcare services in resource-constrained, bottom of pyramid (BoP) settings are well-known issues, which foster a negative cycle of poor health outcomes, catastrophic health expenditures and poverty. Understanding BoP patients’ healthcare choices is vital to inform policymakers’ effective resource allocation and improve population health and livelihood in these areas. This paper examines the factors affecting the choice of health care provider in low-income settings, specifically the urban slums in India.

Method:

A discrete choice experiment was carried out to elicit stated preferences of BoP populations. A total of 100 respondents were sampled using a multi-stage systemic random sampling of urban slums. Attributes were selected based on previous studies in developing countries, findings of a previous exploratory study in the study setting and qualitative interviews. Provider type and cost, distance to the facility, attitude of doctor and staff, appropriateness of care and familiarity with doctor were the attributes included in the study. A random effects logit regression was used to perform the analysis. Interaction effects were included to control for individual characteristics.

Results:

The relatively most valued attribute is appropriateness of care (β=3.4213, p = 0.00), followed by familiarity with the doctor (β=2.8497, p = 0.00) and attitude of the doctor and staff towards the patient (β=1.8132, p = 0.00). As expected, respondents prefer shorter distance (β= − 0.0722, p = 0.00) but the relatively low importance of the attribute distance to the facility indicate that respondents are willing to travel longer if any of the other statistically significant attributes are present. Also, significant socioeconomic differences in preferences were observed, especially with regard to the type of provider.

Conclusion:

The analyses did not reveal universal preferences for a provider type, but overall the traditional provider type is not well accepted. It also became evident that respondents valued appropriateness of care above other attributes. Despite the study limitations, the results have broader policy implications in the context of Indian government’s attempts to reduce high healthcare out-of-pocket expenditures and provide universal health coverage for its population. The government’s attempt to emphasize the focus on traditional providers should be carefully reconsidered.

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Journal Articles | 2018

When are rewards bad for innovation? Leaders as catalysts for positive linkages between work motivation and innovation

Vishal Gupta

WorldatWork Journal

Building on the foundations of self-determination theory of motivation, the present study investigates the association between leader behaviors, autonomous motivation and employee innovativeness (innovative work behavior and innovation outcomes) in the Indian R&D context. Data were collected from 493 scientists working in Indian R&D organizations and structural equation modeling was used to test the hypothesized relationships between the study variables. The study found evidence for positive relationships between intrinsic motivation, integrated extrinsic motivations, and employee innovative work behavior and innovation outcomes. While extrinsic motivation is always considered to be negative and harmful for innovation, the present study shows that integrated extrinsic motivation has characteristics similar to intrinsic motivation and can be conducive for promoting innovative work behaviors and innovative outcomes. Extrinsic motivation (driven only by financial rewards) was negatively related to both innovative work behaviors and innovative outcomes. Leadership was positively related to intrinsic motivation, integrated extrinsic motivation and innovative work behaviors, but not to extrinsic motivation and innovative outcomes. Implications for theory and practice are discussed.

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Journal Articles | 2018

Leadership competencies for effective public administration: a study of Indian Administrative Service officers

Vishal Gupta, Sanjeev Chopra, and Ram Kumar Kakani

Journal of Asian Public Policy

Public administrative service occupies a strategic position in the public governance system of any nation. Contemporary public administration needs competent public managers who are able to make sense of the ambiguity inherent in the job. This study presents an attempt to identify important competencies needed for public administrators (specifically District Magistrates in India, a peak leadership role in the public service). Based on focused-group discussions and a survey of 218 Indian Administrative Service officers, the study identified eight competencies, namely people first; leading others; integrity; decision-making; planning, coordination and implementation; problem-solving; self-awareness and self-control; and innovative thinking. The eight competencies were further clubbed under four meta-competencies, namely stakeholder analysis and decision-making, managing change and innovation, team building and positive administrator personality. A detailed description of the behaviours included within each competency and meta-competency is provided. Implications for theory and practice are discussed.

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Journal Articles | 2018

Robot-storage zone assignment strategies in mobile fulfillment systems

Debjit Roy, Shobhit Nigam, Rene de Koster, I.J.B.F. Adan, and J.A.C. Resing

Transportation Research Part E: Logistics and Transportation Review

The robotic mobile fulfillment system (MFS) is widely used for automating storage pick and pack activities in e-commerce distribution centers. In this system, the items are stored on movable storage shelves, also known as inventory pods, and brought to the order pick stations by robotic drive units. We develop stylized performance evaluation models to analyze both order picking and replenishment processes in a mobile fulfillment system storage zone, based on multi-class closed queueing network models. To analyze robot assignment strategies for multiple storage zones, we develop a two-stage stochastic model. For a single storage zone, we compare dedicated and pooled robot systems for pod retrieval and replenishment. For multiple storage zones, we also analyze the effect of assigning robots to least congested zones on system throughput in comparison to random zone assignment. The models are validated using detailed simulations. For single zones, the expected throughput time for order picking reduces to one-third of its initial value by using pooled robots instead of dedicated robots; however, the expected replenishment time estimate increases up to three times. For multiple zones, we find that robots that are assigned to storage zones with dedicated and shortest queues provide a greater throughput than robots assigned at random to the zones.

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Journal Articles | 2018

Internet search engines and two-sided markets: Implications for antitrust analysis

Viswanath Pingali

Economic & Political Weekly

Internet search engines provide a vital platform for various groups to interact and create value. On the one hand, they help users find answers to their search queries, and on the other, search engines monetise their free search services by selling advertisements to connect potential buyers with sellers. An exploration of the economics of search markets is presented along with a discussion about the economic literature on two (multi)-sided markets. There is also a discussion of issues with the developments in the antitrust case pertaining to Google in India.

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Journal Articles | 2018

Looking under the hood: A comparison of techno-economic assumptions across national and global integrated assessment models

Volker Kreya, Fei Guo, Peter Kolpa, Saritha S. Vishawnathan, and Amit Garg

Energy

Integrated assessment models are extensively used in the analysis of climate change mitigation and are informing national decision makers as well as contribute to international scientific assessments. This paper conducts a comprehensive review of techno-economic assumptions in the electricity sector among fifteen different global and national integrated assessment models. Particular focus is given to six major economies in the world: Brazil, China, the EU, India, Japan and the US. The comparison reveals that techno-economic characteristics are quite different across integrated assessment models, both for the base year and future years. It is, however, important to recognize that techno-economic assessments from the literature exhibit an equally large range of parameters as the integrated assessment models reviewed. Beyond numerical differences, the representation of technologies also differs among models, which needs to be taken into account when comparing numerical parameters. While desirable, it seems difficult to fully harmonize techno-economic parameters across a broader range of models due to structural differences in the representation of technology. Therefore, making techno-economic parameters available in the future, together with of the technology representation as well as the exact definitions of the parameters should become the standard approach as it allows an open discussion of appropriate assumptions.

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Journal Articles | 2018

Uncertainty Handling in Bilevel Optimization for Robust and Reliable Solutions

Zhichao Lu, Kalyanmoy Deb, and Ankur Sinha

International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems

Uncertainties in variables and parameters cause optimization problems to move away from globally-optimal and uncertain solutions. Practitioners resort to finding robust and reliable solutions in such situations. Bilevel optimization problems involving a hierarchy of two nested optimization problems have received a growing attention in the recent past due to their relevance in practice. While a number of studies on bilevel solution methodologies and applications are available for a deterministic setup, but studies on uncertainties in bilevel optimization are rare. In this paper, we suggest methodologies for handling uncertainty in both lower and upper level variables that may occur from different practicalities. For the first time, we perform a systematic study demonstrating the effect of uncertainties in each level along with the definition of robustness and reliability in the context of bilevel optimization. The issues and complexities introduced due to such uncertainties are then studied through a number of test cases, for brevity, we only show results on three test cases. Finally, two real-world bilevel problems involving uncertainties in their variables are solved. The study provides foundations and demon- strates viable directions for further research in uncertainty-based bilevel optimization problems.

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Journal Articles | 2018

Does plant size matter? Differential effects of FDI on wages and employment?

Shruti Sharma

Asian Development Review: Studies of Asian and Pacific Economic issues

This paper examines the differential effects, based on the size of the plant, of industry-level foreign direct investment (FDI) on plant-level employment and the wages of skilled and unskilled workers in India's manufacturing sector. On average, there are strong positive differential effects of increased inward-level FDI for large plants relative to small and average-sized plants in terms of employment and the average wages of both skilled and unskilled workers. Small plants experience negative effects from inward FDI, which can be explained by intra-industry reallocation of output from smaller to larger plants. After conducting a regional analysis, I find positive spillovers to small plants in Indian states that receive large and persistent flows of FDI. This suggests that a critical mass of FDI is necessary for small plants to experience positive spillover effects.

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Journal Articles | 2018

Stochastic modeling of unloading and loading operations at a container terminal using automated lifting vehicles

Debjit Roy and Rene De Koster

European Journal of Operational Research

With the growing worldwide trade, container terminals have grown in number and size. To increase operational efficiency, many new terminals are now automated. The key focus is on improving seaside processes, where a distinction can be made between single quay crane operations (all quay cranes are either loading or unloading containers) and overlapping quay crane operations (some quay cranes are loading while others are unloading containers). Using a network of open and semi-open queues, we develop a new integrated stochastic model for analyzing the performance of overlapping loading and unloading operations that capture the complex stochastic interactions among quayside, vehicle, and stackside processes. The analytical model is solved using an iterative algorithm based on the parametric decomposition approximation approach. The system performance is tested at varying container traffic levels. We find that the percent absolute errors in throughput times compared to simulation are less than 10% for all cases. Using these integrated models, we are able to generate design insights and also rapidly analyze what-if scenarios. For example, we show that the best yard layout configurations for single (either loading or unloading) operations and the best for overlapping (both loading and unloading) operations largely overlap. The best configurations have relatively few stack blocks and many rows per block. The model is generic and amenable to obtain other design and operational performance insights.

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