Faculty & Research

Research Productive

Show result

Search Query :
Area :
Search Query :
2773 items in total found

Working Papers | 1986

Prediction of Job Performance by Indian Managers: Four Tests of the Two-Stage Averaging-Multiplying Model

Singh Ramadhar and Upadhyaya Sushil K

Prediction of job performance from information about motivation and ability of subordinates was studied. Experiment 1 made the first test by manipulating reliability of information with managers (n = 22) and professors (n = 22). At the first stage of integration, subjects averaged motivation and ability information with their corresponding initial opinions. At the second stage, however, they integrated motivation and ability information differently. Managers followed the multiplying rule; professors followed the constant-weight averaging rule. Experiment 2 (n = 22) paired three or one motivation cue with one ability cue. Predictions from information about either motivation or ability were also obtained. The three motivation cues were first averaged and then multiplied by ability as Test 2 predicted. The combined factorial plots of the Motivation x Ability effects from the two-cue and four-cue descriptions also had the linear fan pattern prescribed by Test 3. However, Test 4, which predicted that the initial opinion of the unavailable information would multiply the given information, needed an additional parameter of imputed value for the unavailable information. Theoretical, methodological, and practical implications of the results were discussed.

Read More

Working Papers | 1986

Economic Importance of Biogas in Integrated Rural Energy System

Moulik T K and P. R. Shukla

This paper discusses the impact of dung availability and economic importance of biogas plants in Integrated Rural Energy System (IRES). Fixed Cost, maintenance cost, feedstock cost and manpower costs of community biogas plant are presented. IRES selection for four villages using the Mixed Integer Linear Programming (MILP) optimization model is presented. Analysis of selection of IRES and energy is presented. Analysis of selection of IRES and energy costs with short term and long term policies of improving dung availability is given which highlights the importance of biogas plants in IRES and costs of energy to a village.

Read More

Working Papers | 1986

Integrated Rural Energy System: Planning and Organization

Moulik T K and P. R. Shukla

This paper discusses the process and methodology for the Integrated Rural Energy System (IRES) and organization of IRES. The planning includes methodology for estimation of village energy needs and energy resources, information and data on alternate energy systems available, model for optimal IRES selection for a village, installation and maintenance of IRES and strategies for and implications of energy resources development. Organizational issues considered include various interfaces among village organization and different agencies involved in implementation of IRES. The IRES planning and organization issues presented are supported and highlighted by the extensive studies conducted by the authors and their experience in IRES planning and organization.

Read More

Working Papers | 1986

Crew Scheduling in Indian Railways - A Case Study of Vadodara Division Passenger Train Crews

G. Raghuram, V. Venkata Rao, and Saha Jahar

In this paper we discuss the crew scheduling problem in Indian Railways and propose a methodology to minimize crew requirements. In Particular, we deal with the scheduling of passenger train crews in Vadodara Division of Western Railway. In Part-I of the paper, we describe the organization of Indian Railways, highlight the decision making process and give a brief description of the crew categories. We end Part-I by giving the regulations relevant for the scheduling decisions and a formulation of the problem as of determining a 'crew link' that requires minimum number of crews. In Part-III we describe the 'A-D Sequence' methodology and discuss how this is used in evaluating a 'Crew Link' for the drivers of express trains in Vadodara Division. In conclusion, we remark that the methodology is very general and it could be used for scheduling of all category of crews for passenger trains.

Read More

Working Papers | 1986

Demand Forecasts for Cultural and Industrial Papers in India: Some Policy Implications

Gupta Tirath

Number of integrated pulp and paper mills in India increased from 17 in the early 1950s to 250 in 1985, and the production capacity rose from 137,000 tonnes to 2,350,000 tonnes. The capacity utilization, however, declined continually from 90 per cent during 1951-56 to 58 per cent during 1980-85. This is attributed to a number of factors chief among which are the predominant role of ambitions and presumptions, and lack of distinction between need and demand in the planning process. Besides the official documents, an assessment of the studies to forecast the demand for paper on the basis of i) changes in income, ii) changes in incomes, expenditure on education, index of industrial production, etc., and iii) limited end use surveys; also indicated that there has been one way difference between the demand forecasts and observated consumption levels during 1960-85, and the former were higher than the latter by 7 ato 97 per cent. The variations within the projected demand levels for any year have been even more pronounced. Some of the reasons for these variations have been the differences in i) type of association assumed between explanatory and dependent variables, ii) type of data used in the studies, iii) assumed growth rate for the explanatory variables, iv) the number of explanatory variables included in the models, v) subjective judgements of the analysts and users of the results, etc. The last of these has been facilitated by non-availability of adequate or accurate data, and inadequate modelling work such that the demand forecasts have not been approached in a systems framework. The forecasts have not served as appropriate tools for production planning and policy making this may be achieved if adequate and reliable data on consumer profile are collected and processed to enlighten the analysts on how much of different types of paper and paperboards are consumed by different socio-economic groups for different purposes. This may be the best time to generate the data as the nations need not plan for additional production capacity for at least the next 5 years.

Read More

Working Papers | 1986

Averaging Model Analyses of Teacher Expectations of Performance from Students Varying in Motivation and Ability

Singh Ramadhar and Shoba Sneh

Although there have been numerous studies of the impact of teacher expectation on student performance, the manner in which expectations are formed has remained unexplored. The present research tested the hypothesis that teachers develop expectation of student performance by averaging information about his or her motivation and ability. In two experiements on prediction of performance in nonacademic contests (n = 60) and academic exams (n = 60), manipulations of number of pieces of similar motivation information, availability of additional pieces of average motivation information, and unavailability of information about either motivation or ability all yielded results as prescribed by the averaging model. Motivation information received not only less importance than ability information but also got discounted when it differed markedly from that of ability information. As this result differs from those previously obtained from students and managers, the second hypotheses of role differences in expectation of performance was also supported. Theoretical, methodological, and applied implications of the results were discussed. Suggestions for future research were also made.

Read More

Working Papers | 1986

Comparative Evaluation of Operating Performances of KVIC and Janata Models of Biogas Plants in India

Moulik T K and P. R. Shukla

This paper gives a comparative evaluation of operating performance of KVIC and Janata model biogas plants in India. The comparative analysis is based on the extensive field survey of KVIC and Janata model plants in five States in India. Comparison is based on cost, operating problems, usage of gas, maintenance, feed stock types etc. Role of implementation agencies in success of the biogas plant installation is also studied.

Read More

Working Papers | 1986

Determinants of Error Variance in Individual Child Analyses for Studying Integrational Capacity

Singh Ramadhar

In research on information integration by children, integrational capacity of a child is ascertained by the number of statistically significant main effects in analysis of variance for the child. Such an approach has an obvious bias, for the error variance may be bigger for younger but smaller for older children. Analyses of error variance from individual child analyses of four previous experiments on prediction of performance yielded mixed results. The mean error term sometimes decreased, sometimes increased, and sometimes remained the same over increasing age of children. The number of cues in the integration task and the nature of judgment seemed to be better predictors of error variance than the age of children. It seems that a study of integrational capacity must as a rule check on response variability along with the number of statistically significant main effects over ages.

Read More

Working Papers | 1986

Organization of the Future: A Strategic Organization Perspective

Khandwalla P N

In the light of research on organizational design, the paper outlines an effective design for the strategic organizations of developing societies. Strategic organizations are defined as those organizations with the mission of further growth and development of the sectors they are serving. The data on 31 leading Indian central public sector enterprises indicates that the postulated effective organizational design for Third World strategic organizations is feasible. The data on 5 strategic Indian organizations indicates that rapid, sometimes spectacular improvement in productivity and other indicators of performance accompany management changes towards the design postulated to be effective for strategic organizations.

Read More

Working Papers | 1986

Prediction of Son Performance in Easy through Difficult Exams by Indian Parents

Singh Ramadhar and Mehta Mridula

Prediction of exam performance from information about motivation and ability of students by Indian subjects always supported an adding-type rule. As this rule implies that motivation is equally effective with persons of low through high ability, it may be regarded as reflective of an idealistic philosophy. The present research tested the hypothesis that a multiplying-type rule which implies that motivation is more effective with persons of high than of low ability may be used by Indian subjects if the situation demands realistic estimates. Twenty-four couples expressed expectations from their only-son in easy through difficult exams to school principal confidentially. Predictions by mothers obeyed the multiplying-type rule; those by fathers obeyed the adding-type rule. Exam difficulty changed pattern in father's judgments but not in mother's judgments. However, parents held a similar belief: Effectiveness of motivation increases with sons of high ability but decreases with sons of low ability as difficulty of exam increases. Of the three possible explanations for the effects of exam difficulty, changes in weight of information seemed to be the most parsimonious.

Read More
IIMA