Optimal Comparable Selection and Weighting in Real Property Valuation: An Extension

Vandell (1991) recently developed a rigorous minimum variance technique for selecting and weighting comparables in real estate appraisal. This article extends Vandell's methodology in three areas: (1) an alternative objective function; (2) an approach that explicitly recognizes the non-negativity constraint on comparable weights; and, (3) a more robust comparable inclusion process. Using Vandell's data, we show how our methodology modifies Vandell's results.     

Nutrition in socioeconomic planning in LDCs

Nutrition should be seen as an integral part of the national planning effort. The author examines longterm determinants of food consumption in developing countries and shows that progress in improving nutrition is closely related to raising productivity and efficiency in the national economy. Optimum programmes in nutrition should be part of the design of appropriate social and economic development. This should be done at national and regional levels, with particular emphasis on the regional level.     

Time preferences,cognitive abilities and intrinsic motivation to exert effort

The experimental literature has found a positive relationship between patience and performance in cognitive tests that are not incentivized by money. It has also been shown that unincentivized cognitive tests capture not only cognitive ability (CA), but also intrinsic motivation related to the test takers’ personality traits. In order to determine whether the relationship between patience and test scores is driven by intrinsic motivation or CA, we run an experiment in which subjects take either incentivized or unincentivized cognitive tests. We find that while incentivized test scores positively correlate with patience, the unincentivized scores are not related to the time preferences of our subjects. The observed correlation between patience and cognitive test scores therefore seems to be driven by CA rather than by intrinsic motivation related to personality traits.     

An analytical approach for systematic risk sensitivity of structured finance products

The global financial crisis has shown that many financial institutions dealing with credit derivatives were exposed to severe unexpected losses. This indicates that systematic influences are decisively underestimated particularly with regard to structured products like securitized tranches of collateralized debt obligations. Our analytical study addresses these systematic effects: We provide a simple model which allows a closed-form comparison of both bonds and tranches with respect to their systematic risk. We demonstrate that the exposure to systematic risk of tranches may be many times higher than the exposure of bonds, even if both products share the same rating grade, e.g., an ‘AAA’ rating, measured by either default probability or expected loss. Particularly in economic downturns, default rates of tranches may be multiples of those of bonds. Our results help understand high default rates of tranches during the financial crisis and show that classical ratings are insufficient metrics for measuring risks of structured products.     

Clustering of cultural industries in Chinese cities

This study is the first empirical research on understanding the determinants of the concentration of cultural industries (CIs) in cities in China. What factors of the urban environment are important for attracting the location of CIs? How is the development of CIs in a city influenced by its neighbouring cities and its early development? To answer these questions, three types of spatial panel models – the spatial lag model, the spatial error model and the spatial dynamic panel model – are employed using the urban statistics for China from 2003 to 2009. Human capital, diversified industrial structure and transportation and communication infrastructure are significant factors contributing to the development of CIs. The empirical findings reveal the presence of positive spatial spillovers among cities, which suggests that promoting CIs in one city benefits other cities. Also, the evidence suggests the presence of temporal spillovers, implying that the early concentration of CIs in a city tends to attract more CIs in that city.     

Is the European integration speeding up the economic convergence process of the Central and South-Eastern European countries? A shock perspective

In the current context of continuous reassessment of the sustainability of the single currency and gradual enlargement of the euro area during the last decade, the objective of this research is to obtain new insights into the factors that determine the synchronisation of shocks in the Central and South-Eastern European countries vis-à-vis the euro area. The research contributes to the previous work by making a novel use of error correction model in a dynamic panel context which is extended by adding several important omitted variables related to the trade structure and policy coordination. We find that an increase in trade intensity, intra-industry trade and financial integration leads to less frequent asymmetric shocks. On the other hand, divergent fiscal policies are estimated in some model specifications to increase the shock divergence process, although the estimated impact is rather small to counteract the positive effects associated with trade and financial integration. The identified relationships in this research are affected by the significant trade and growth slowdown in the crisis period; while the global economic turmoil has boosted a demand shock convergence, its impact on the supply shocks is in the opposite (diverging) direction.