Pricing efficiency of the S&P 500 index market: Evidence from the Standard & Poor's Depositary Receipts

Standard & Poor's Depositary Receipts (SPDRs) are exchange traded securities representing a portfolio of S&P 500 stocks. They allow investors to track the spot portfolio and better engage in index arbitrage. We tested the impact of the introduction of SPDRs on the efficiency of the S&P 500 index market. Ex‐post pricing efficiency and ex‐ante arbitrage profit between SPDRs and futures were also examined. We found an improved efficiency in the S&P 500 index market after the start of SPDRs trading. Specifically, the frequency and length of lower boundary violations have declined since SPDRs began trading. This result is consistent with the hypothesis that SPDRs facilitate short arbitrage by simplifying the process of shorting the cash index against futures. Tests of pricing efficiency comparing SPDRs and futures suggested that index arbitrage using SPDRs as a substitute for program trading in general results in losses. Although short arbitrages earn a small profit on average, gains are statistically insignificant. A trade‐by‐trade investigation showed that prices are instantaneously corrected after the presence of mispricing signals, introducing substantial risk in arbitraging. Evidence in general supported pricing efficiency between SPDRs and the S&P 500 index futures—both ex‐post and ex‐ante. © 2002 Wiley Periodicals, Inc. Jrl Fut Mark 22:877–900, 2002     

Strategies for sustainable intensification in East African highlands: labor use and input efficiency

Strategies for poverty alleviation and sustainable natural resource management usually focus on land use options for improving yields. Increasing the returns to critical factors requires possibilities for input substitution. Inadequate timing of input applications or nonavailability of complementary factors can seriously hinder this substitution. Such constraints particularly apply in less‐favored areas where soil organic matter content is too low for enabling efficient nutrient uptake and soil structure limits water infiltration and moisture retention. This article focuses attention on the importance of labor for crop management activities and input applications that enhance input efficiency in highland area cropping systems of Northern Ethiopia. Given the inherent complementarities between labor and nutrient supply during critical phases of the plant growth process, input efficiency strongly depends on labor use. We present a semiparametric bioeconomic modeling approach to analyze the available options for improving input efficiency in agricultural production. Input response equations are used that consider the returns per unit of land and labor as a function of specific combinations of material inputs and management practices. Critical trade‐offs may arise when opportunity costs for labor are considered or when complementary factors appear as binding constraints. The model enables assessment of feasible pathways for enhancing sustainable intensification and poverty alleviation in typical settings of the East African highland region.     

The water market in Israel: An example for increasing the supply

In this study we search for solutions to the problem of Israel's water shortage. To illustrate the shortage, we first model the water market in Israel, i.e., the corresponding supply and demand of water, and from it the dynamics of water prices. A direct way to solve the shortage problem and to reduce the high equilibrium price can be found via a different way of sharing water among the Levant countries, or by bringing more water from outside the region. The latter can take the form of conveying Nile water or water from Turkey or by constructing desalination plants along the shores. In this study we concentrate on the importing of Nile water.The costs of most of the solutions are too high compared to the returns to water in agriculture. This relation is continuously changing with the increasing demand for water for domestic and agricultural use. Our analysis shows that within 5–10 years the marginal value product of water in the area west of the Jordan river would equal the marginal costs of water from the Nile, $0.40m³.     

Do the intradeciles inequalities matter? A note

Using an algorithm suggested by Berrebi and Silber (1987) and assuming that the population within any decile is distributed uniformly between its boundsa andb, the paper shows that the intradecile inequality is generally not important and may be ignored. This finding is useful in empirical analysis, even today, when inequality indices are sought. Although current microdata sets from which the Gini indices can be calculated directly are widely available, past data are still in use and the new data are not always accessible to the interested user in micro detail, while the deciles bounds are very frequently reported. The study also points to a new constant. The Gini of a variable over the interval [0,b] when there is a large number (n>100) of individuals and the variable is distributed uniformly, is 1/3 regardless of the value ofb.     

Market vs social valuation of redevelopment projects in an urban setting

A conventional urban model is employed to investigate the effect of urban renewal-which leads to an increase in the intensity of land use on the rent revenue from the area that is directly affected by the development. It is shown that rent revenue would increase when the project covers less than 80% of the city area. If it covers more than 80%, rents might be reduced. Hence, in the former case market forces can be relied upon as guides for socially desirable projects.     

Stock Returns and Exchange Rate Nexus in Ghana: A Bayesian Quantile Regression Approach

This paper presents analysis of the relationship and dependence structure between stock returns and exchange rates in Ghana using data of daily periodicity from January 4, 2011 to July 31, 2014. Analyses are conducted by means of Bayesian quantile regression (QR) technique and multiple causality tests. Our findings suggest high dependence of the equity market on the foreign exchange market in Ghana, and that the link between the two markets follows the international trade‐oriented model more than the portfolio balance theory. We report that among the six exchange rates used, only the cedi–dollar registers instantaneous effect on the equity market.     

Tourism,Religion and Religiosity: A Holy Mess

Although religion and religiosity are well-known factors for influencing behaviour in different social settings, there is very limited research that explores the links between them and visitation patterns of tourists. In this study tourists' visitation patterns to a heritage site of religious significance (the Wailing Wall, Israel) are explored. Differences are found between tourists based on their religious affiliation and religiosity. The findings also reveal that the tourists' religiosity has different effects on those with different religious affiliations. It is argued that the actual relationships between a tourist's religion and strength of religious belief need to be understood in relation to the site visited, the tourist's perception of it and the meaning he or she attaches to it. The implications for tourism management and the theoretical investigation of heritage tourism are discussed.     

Should Africa’s emerging markets still be considered as a separate asset class?

This article examines the correlation of Africa’s emerging markets regionally and globally using the Continuous Morlet Wavelet (CMW) transform. The superiority of this technique is that it is able to estimate correlation in a time-varying manner and derive all information about structural changes in the data through a phase difference technique. We find that Africa’s emerging equity markets are partially segmented regionally and globally. Although correlations may have increased over time, we suggest that emerging markets in Africa should still be considered as a separate asset class.