The World Social Forum as an emergent learning process

One of the most prominent manifestations of world civil politics today—and arguably, in history—is the World Social Forum, set up in 2000-2001, which held its first world meeting in Porto Alegre, Brazil, in January 2001. Beginning with the emphasis on opposition to neo-liberal globalisation, the ferment generated by the Forum soon gave rise to its evocative slogan, ‘Another World Is Possible!’ and the emphasis moved from opposition to developing specific alternative proposals for a world level political and economic system. In the last few years, the WSF has evolved into a permanent, horizontal open public space, a commons, which provides an opportunity to diverse organisations and individuals from all over the world to meet and dialogue across boundaries and to interact and exchange information in multifarious ways to work towards making another world possible. This paper examines the dynamics of the WSF process and argues why perhaps it is one of the most significant developments of the last century, which is giving rise to another, more open culture of politics and is forging a great piece of public ‘architecture’ in our times. The WSF is not only calling for another world, in a sense it contains the other world, or plural other worlds!     

Technological upgrading and energy demand scenarios for Indian railways—A system dynamics study

This paper presents a system dynamics model of the Indian railway system and generates probable scenarios of its performance up to the year 2011. The basic structure of the model, the relationships between the interacting variables, and the generic flow diagrams used for developing the model are discussed in detail. In generating the scenarios, probable changes in the railway system and in the national socioeconomic environment in which it works are considered. In particular, introduction of technological innovations in the railways and their impact on railway energy demand are examined in detail.     

Decentralized capacity management and internal pricing

This paper studies the acquisition and subsequent utilization of production capacity in a multidivisional firm. In a setting where an upstream division provides capacity services for itself and a downstream division, our analysis explores whether the divisions should be structured as investment or profit centers. The choice of responsibility centers is naturally linked to the internal pricing rules for capacity services. As a benchmark, we establish the efficiency of an arrangement in which the upstream division is organized as an investment center, and capacity services to the downstream division are priced at full historical cost. Such responsibility center arrangements may, however, be vulnerable to dynamic hold-up problems whenever the divisional capacity assignments are fungible in the short-run, and therefore, it is essential to let divisional managers negotiate over their actual capacity assignments. The dynamic hold-up problem can be alleviated with more symmetric choice of responsibility centers. The firm can centralize ownership of capacity assets with the provision that both divisions rent capacity on a periodic basis from a central unit. An alternative and more decentralized solution is obtained by a system of bilateral capacity ownership in which both divisions become investment centers.     

Population growth and technological change in a global warming model

Global warming (GW) is now recognized as a significant threat to sustainable development on an international scale. After providing some introductory background material, we introduce a benchmark dynamic game within which to study the GW problem. The model allows for population growth and is subsequently generalized to allow for changes in technology. In each case, a benchmark “Business as Usual” (BAU) equilibrium is analyzed and contrasted with the efficient solution. Furthermore, a complete characterization is provided in the benchmark model of the entire subgame perfect equilibrium value correspondence.JEL Classification Q54, D99, O12This paper builds on the Woytinsky Lecture delivered by Roy Radner at the University of Michigan, March 11, 1998. We would like to thank Graciela Chichilnisky, Arnulf Grubler, Geoffrey Heal, Leonid Hurwicz, Jill Jaeger, Peter de Janosi, Paul Kleindorfer, Giuseppe Lopomo, Thomas Schelling, Tapan Mitra, and Michael Toman for helpful discussions and references, and Andrew King, Charlotte V. Kuh, and Frank Sinden for comments on an earlier draft. In the case of the present enterprise, much of whose scope lies outside of our previous expertise, it is even more important than usual to emphasize that we are responsible for all errors.     

Dynamics of money, output and price interaction — some Indian evidence

The present study is an attempt to model the dynamic interactions between money, output and prices in a structural vector autoregression framework. The primary concern of the paper is to examine the sources of variations and response of one variable to changes in others in a system of economic variables in the Indian context. Using quarterly data from 1970Q1 to 1990Q4, we find that structural factors, in addition to monetary factors, play an important role in generating and sustaining the process of inflation and fluctuations in economic activity. An increase in money/credit supply is found to increase output and prices in the short-run and prices in the long-run, while a non-accommodating monetary policy is ineffective in controlling inflation even at the cost of substantial output losses, thereby indicating relative rigidities in price movements. Another interesting finding is that the monetary authority responds differently to different price shocks, exercising its leverage in altering the quantity as well as the composition of aggregate money supply. Our findings also indicate that the economy is characterized by relatively large and infrequent shocks to ‘price/cost’-related factors. Finally, our analysis suggests that a simple monetary targeting without adequate ‘supply side’ measures may not be able to serve the objective of maintaining growth with price stability.     

The Effect of Earnings Forecasts on Earnings Management

We develop a theory of the association between earnings management and voluntary management forecasts in an agency setting. Earnings management is modeled as a "window dressing" action that can increase the firm's reported accounting earnings but has no impact on the firm's real cash flows. Earnings forecasts are modeled as the manager's communication of the firm's future cash flows. We show that it is easier to prevent the manager from managing earnings if he is asked to forecast earnings. We also show that earnings management is more likely to follow high earnings forecasts than low earnings forecasts. Finally, our analysis shows that shareholders may not find it optimal to prohibit earnings management. Earlier results rationalize earnings management by violating some assumption underlying the Revelation Principle. By contrast, in our model the principal can make full commitments and communication is unrestricted. Nonetheless, earnings management can be beneficial as it reduces the cost of eliciting truthful forecasts.     

The tragedy of the commons?

Summary We provide a complete characterization of the set of Markov-Perfect Equilibria (MPE) of dynamic common-property resource games a la Levhari and Mirman (1980). We find that all MPE of such games exhibit remarkably regular dynamic behavior. Surprisingly, however, and despite their memoryless nature, MPE need not result in a tragedy of the commons, i.e., overexploitation of the resource relative to the first-best solutions. We show through an example that MPE could, in fact, lead to the reverse phenomenon of underexploitation of the resource. Nonetheless, we demonstrate that, in pay off space, MPE are always suboptimal.The first version of this paper was written when Sundaram was a graduate student at Cornell University; the current version was completed when he was visiting the California Institute of Technology. We are grateful to many people for their advice, and would like to thank, in particular, Mukul Majumdar, Andreu Mas-Colell, Tapan Mitra, Debraj Ray, Aldo Rustichini, and Karl Shell. We also benefitted from the comments of participants at presentations in Columbia University (Fall 1988) and Caltech (Spring 1990), and at various conferences. Partial support for this project was provided by the NSF under Grant 86-06944 (principal investigator: Karl Shell).     

Skilled–unskilled wage inequality,product variety,public input and increasing returns: A static general equilibrium analysis

The paper develops a four sector small open economy model with two traded final good sectors, a public intermediate good producing sector and a nontraded good sector producing varieties of intermediate goods. There are three primary factors: capital, skilled labour and unskilled labour. Industrial sector producing a traded good uses capital, intermediate goods and skilled labour as inputs. Intermediate goods producing sector also uses capital and skilled labour. Public input producing sector and the agricultural sector producing the other traded good use capital and unskilled labour as inputs. It is shown that, if production technologies are the same for the agricultural sector and the public input producing sector and if the scale elasticity of output is very low, then an increase in capital stock (unskilled labour endowment) raises (lowers) the skilled–unskilled wage ratio. However, an increase in skilled labour endowment does not produce any unambiguous effect. On the other hand, an increase in the tax rate on industrial output and/or an increase in the price of the agricultural product, armed with the same set of assumptions, lowers the skilled–unskilled wage ratio.     

Capital growth in a global warming model: will China and India sign a climate treaty?

Global warming is now recognized as a significant threat to sustainable development on an international scale. One of the key challenges in mounting a global response to it is the seeming unwillingness of the fastest growing economies such as China and India to sign a treaty that limits their emissions. The aim of this paper is to examine the differential incentives of countries on different trajectories of capital growth. A benchmark dynamic game to study global warming, introduced in Dutta and Radner (J Econ Behav Organ, 2009), is generalized to allow for exogenous capital accumulation. It is shown that the presence of capital exacerbates the “tragedy of the common”. Furthermore, even with high discount factors, the threat of reverting to the inefficient “tragedy” equilibrium is not sufficient to deter the emissions growth of the fastest growing economies—in contrast to standard folk theorem like results. However, foreign aid can help. If the slower growth economies—like the United States and Western Europe—are willing to make transfers to China and India, then the latter can be incentivized to cut emissions. Such an outcome is Pareto improving for both slower and faster growth economies.     

(En-)‘lightening’ children: Assessing the impacts of access to electricity on learning achievement levels

The welfare impacts of electrification are well documented in the literature, including the effects of electricity on school enrolment. However, the spillover effects of electrification on children's achievement levels are scarce. We use three complementary but distinct econometric models to establish a causal relationship between electrification and test scores using nationally representative household panel data from India. We find positive results irrespective of the choice of econometric model, and these results seem to be mediated by changing time-use patterns of children with access to electricity. We first exploit the plausibly exogenous variation in access to electricity due to a universal electrification program in the state of West Bengal in India and we find positive effects of electrification on children's test scores. By age group, we find that younger cohorts benefit more in terms of their reading scores than older cohorts. Then, to ascertain external validity of these results, we replicate them over a nationally representative sample using fixed effects and instrumental variables estimation and find similar results. At the intensive margin, we find that access to more hours of electricity positively affects test scores. We identify an increase in time spent by children on study-related activities as the potential channel for these results.