Sustainable Internet access for the rural poor? Elements of an emerging Indian model

Although there are many projects, mainly supported by international donors, demonstrating that the Internet can be supplied to rural areas in developing countries, the real objective is to make these projects sustainable on a commercial basis. Among other things, this type of sustainability will require a project with unusually low costs of Internet delivery to poor, isolated users. In this paper we have examined a case from India, which uses a unique combination of low-cost indigenous technology and a low-cost model of delivery that exploits the ability of the informal sector to respond and adapt to local needs. This model, we feel, may serve as an example, to other developing countries seeking to bridge the global Digital Divide.     

Macroeconomic effects of IMF-sponsored programs in Latin America: output costs, program recidivism and the vicious cycle of failed stabilizations

We investigate the effects of IMF stabilization programs, and the reasons behind the unusually high IMF activity and relatively low program completion rates in Latin America. We base our tests on a panel, and distinguish between IMF program approvals and completion. We find that Latin America has higher output costs of IMF programs (especially when completed), no improvement in the current account, and a much higher likelihood of program failure and recidivism than other regions. The common finding that entering into an IMF-supported program incurs real short-run costs on the economy is entirely driven by the experiences in Latin America.     

Impact of Divergent Consumer Confidence on Option Prices

This paper investigates the impact of divergent consumer confidence on option prices. To model this, we assume that consumers disagree on the expected growth rate of aggregate consumption. With other conditions unchanged in the discrete-time Black–Scholes option-pricing model, we show that the representative consumer will have declining relative risk aversion instead of the assumed constant relative risk aversion. In this case all options will be underpriced by the Black–Scholes model under the assumption of bivariate lognormality. This revised version was published online in June 2006 with corrections to the Cover Date.     

Equity Risk, Conversion Risk, and the Demand for Insurance

Existing insurance theory fails when applied to real property because it does not account for variations in the economic environment. The article studies optimal property insurance in the presence of two sources of variation: equity risk and conversion risk. Equity risk is randomness of the value of a property. It tends to raise demand for conventional insurance. In contrast, conversion risk is randomness in the value the property would have if, after severe damage, it were converted to the highest‐valued use. It is distinct from equity risk because the highest‐valued use is typically not the current one. Under independent conversion risk, the optimum upper limit is a compromise among underlying conversion thresholds. Absent independence, the optimum can be quite different. Conversion risk can raise or lower the demand for property insurance. Insurance contracts that fail to address conversion tend to undermine the orderly disposition of obligations and reduce the gains from reallocation of risks through insurance.     

The measurement of corporate portfolio strategy: analysis of the content validity of related diversification indexes

Measures developed for the analysis of corporate diversification have become fundamental to a broad range of strategy research. This paper examines the content validity of the two most widely used continuous measures of related diversification—the related component of the entropy index and the concentric index—and raises fundamental questions about their validity as indicators of portfolio relatedness. These questions are not driven by the use of SIC data for estimation of the indexes; they involve validity problems intrinsic to the construction of the measures. The related component of entropy and the concentric index are sensitive to features of corporate portfolio composition that may not be directly linked to portfolio relatedness. These sensitivities can create important ambiguities in strategy research. Copyright © 2002 John Wiley & Sons, Ltd.     

On the Distribution of CBOE Option Trade Prices Occurring Between Consecutive Stock Trades

This paper examines the volume distribution of option trade prices that occurs when the underlying stock price remains constant. The width of these option trade price bands provides direct evidence on the law of one price and the redundancy of options assumed in many option models. We find that index option bands are narrower than equity option bands. Furthermore, for both equity and index options, puts have narrower bandwidths than calls. In general, option price bandwidth is narrow and can be explained by the minimum price movement allowed by the Chicago Board Options Exchanges (CBOE). This supports the single price law and the redundancy assumption. The existence of bid/ask quotes on the option does not materially affect the above results although it does alter the frequency of multiple option trade prices for a given underlying stock price. We note that over 53% of option trading volume occurs without bid/ask quotes on the CBOE compared to less than 15% a decade ago. Our results suggest that the effective bid/ask spread on options is probably no larger than the minimum price movements allowed by the CBOE. Furthermore, the need for the liquidity services of market makers may be declining if the decline in quoting activity stems from cross trading (i.e. trades not involving market makers).     

Tax Competition and Redistribution in a Two-Country Endogenous-Growth Model

This paper examines the effects of policy coordinationin a two-country world with endogenous growth and imperfect capitalmobility. Redistribution is financed by a source-based capital-incometax. Comparing the cases in which countries do and do not coordinatetheir fiscal policies, it is shown that redistribution can beinefficiently high if fiscal policies are not coordinated. Thisis because the negative effects of fiscal policy on home savingsaffect economic growth abroad by inducing a decline in foreigninvestment. This externality can dominate the well-known tax-baseexternality.     

Litigation, School Finance Reform, and Aggregate Educational Spending

In the past two decades, litigation in many U.S. stateshas triggered educational reform movements designed to reducethe inequalities in educational expenditures across school districts.This paper uses a panel data set across all the states from 1970–1990to examine the role of litigation and educational finance reformin determining the level of education funding in a flexible,dynamic setting. An important finding of our work is that litigationand reform have differential effects across the states, in somecases leading to increases while in other cases decreases inpredicted spending.