Impact of sovereign rating changes on stock market co-movements: the case of Latin America

We aim to determine if long-term foreign currency sovereign rating assessments (from S&P, Moody’s and Fitch) for the advanced emerging Latin American countries (Brazil, Mexico and Chile) have any significant effect on the correlation between their stock market returns in the last decade. With that purpose in mind, we obtain the time-varying correlation by cDCC modeling using ARX-APARCH filtered returns. The analysis shows that the rating changes do not have a significant effect on the correlations in general. After testing for robustness, we reveal that an upgrade to an investment grade level for a country is more likely to positively diversify it from others in the region instead of creating a common positive regional investment environment. Results have important implications for investors and policymakers.     

Explicit versus Implicit Contracts: The Case of DIFF and CROSS Futures

This paper investigates the potential success of an explicit futures contract when an implicit one, which can duplicate it, exists. It is hypothesized that the success of the explicit futures contract depends on its value added being greater than that of its implicit counterpart given that sufficient hedging demand exists for it. Following a discussion of value added analysis, hedging effectiveness of the Euro-rate Differential (DIFF), the Currency Cross-rate (CROSS) futures contracts, and their implicit counterparts are calculated and tests of relative hedging effectiveness of these contracts are performed. Test results support the hypothesis of the paper and their implications for new futures contract development are discussed.     

Does Homeownership Prolong the Duration of Unemployment?

We examine the effects of homeownership on individuals' unemployment durations. An unemployment spell can terminate with a job or with nonparticipation. The endogeneity of homeownership is addressed by estimating a full maximum likelihood function jointly modeling the competing hazards and the probability of being a homeowner. Unobserved factors contributing to the probability of being a homeowner are allowed to be correlated with unobservable heterogeneity in the hazard rates. Not controlling for ownership selection, there is neither a significant difference in the job‐finding hazard nor in the nonparticipation hazard of unemployed owners and renters. If we jointly model the ownership selection, we find that unemployed homeowners are more likely to find a job than renters.     

The place attachment experience regarding the disabled people: the typology of coffee shops

This study inquires the possible creation of a sense of a place in coffee houses for the disabled people as public places. The physical characteristics of a space are the main factors allowing all people including the disabled ones as well to perceive that place properly and within the “person, place and interaction process” framework. The place attachment, which can be defined as the main emotional bond between space and the users, is heavily influenced by the individualistic experiences and reactions whether they are ordinary or differently abled. In order to initiate a place attachment, spaces should be designed in a way that they respect the occupant’s perception, feelings, memories, senses and their physical abilities to enable them to develop a sense of belonging and ownership. Therefore, creating designs which foster people’s construction process of sense of a place that comprises the concept of identity and sense of belonging, is among the essential issues for realizing place attachment in architecture and design of public spaces. In our contemporary world, there are settings that possess these qualities; contrariwise there are more architectural and urban spaces which ignore these qualities and their benefits for people, especially for the disabled ones. Relatedly, a building should offer people enough information for perceiving it and with its physical features should also support the experiences that occur in it. There is a strong link between memorable events and the space where those events occur. An environment which provides outstanding and meaningful ambiance by its architectural characteristics can establish a sense of a place. Disabled people often have less opportunities to experience the spaces properly compared to others because their limitations are not taken into consideration when designing the public spaces. Therefore, the design process of public spaces should involve the basic needs of disabled people. In order to propose a typology for traditional coffee houses, this research aims to define and discuss the place attachment experience of disabled people in public spaces. The study begins with an overview of identifying different types of disabilities and special needs, and an introductory discussion of how space attachment can help to meet those needs. Therefore, the physical, social and typological aspects of traditional coffee houses were evaluated in terms of location, space organization and functions by considering the profiles of disabled users. Methodologically, this is a case study, which has a mixed research design including qualitative and quantitative research instruments.     

A class of multipartner matching markets with a strong lattice structure

Summary. For a two-sided multipartner matching model where agents are given by path-independent choice functions and no quota restrictions, Blair [7] had shown that stable matchings always exist and form a lattice. However, the lattice operations were not simple and not distributive. Recently Alkan [3] showed that if one introduces quotas together with a monotonicity condition then the set of stable matchings is a distributive lattice under a natural definition of supremum and infimum for matchings. In this study we show that the quota restriction can be removed and replaced by a more general condition named cardinal monotonicity and all the structural properties derived in [3] still hold. In particular, although there are no exogenous quotas in the model there is endogenously a sort of quota; more precisely, each agent has the same number of partners in every stable matching. Stable matchings also have the polarity property (supremum with respect to one side is identical to infimum with respect to the other side) and a property we call {\it complementarity}. Received: May 5, 2000; revised version: January 25, 2001     

Technology-assisted tolerance education at elementary schools within the framework of inspector qualifications

The importance of tolerance is being seen as an essential virtue in contemporary societies and in this paper Cyprus sample was chosen as regards tolerance education. The two peoples of Cyprus with different language and religion but the same culture (Turkish Cypriots and Greek Cypriots) thought that only politics could solve the deadlock after the 1974 war and the fact that the two peoples could be converged with education, especially tolerance education, was ignored. In this paper the intention is to approach tolerance education especially on the basis of education management for which reason inspectors are chosen as the study group. It was based on the execution of tolerance education with contemporary teaching approaches, especially in a technology-assisted manner. As a result, the research question was determined as “what is the status of technology-assisted tolerance education in elementary schools in Cyprus within the framework of inspector qualifications?” This is a qualitative research based on case study model. Participants of the study were chosen on a purposive-sampling and convenience-sampling basis. Thus, the sampling of the research consists of 20 educators (inspector, school manager, teacher and scholar) in Northern and Southern Cyprus in 2016–2017 spring semester. Ten of the educators were chosen from Northern Cyprus and the other 10 were chosen from Southern Cyprus. Data collection method used in this paper is “semi-structured interview” technique. Content analysis technique was used in the examination of the data collected in this research. A closer look at the research findings show that the opinions as regards usage of technology in tolerance education in elementary school are as follows: “preparation and usage of different materials in tolerance education”, “usage of positive examples of technology-assisted tolerance education outside Cyprus” and “including both technology and tolerance in every step of education programs”. When different opinions are taken into consideration, Greek Cypriots stated that awareness should be raised in children in environments without tolerance with technology-assisted education. Turkish Cypriots, on the other hand, emphasized that all stakeholders in education should have a technology-friend educator identity and in order to offer tolerance education their level of tolerance should be high in the first place.

     

Credit and self-employment

The US personal bankruptcy system allows debtors to discharge uncollateralized debts if they give up assets in excess of a threshold known as an “exemption”. However, since exemptions erode repayment incentives, they may increase borrowing costs. Our paper evaluates the tradeoff between credit costs and the insurance against failure created by bankruptcy exemptions. We find that exemptions change self-employment rates and the timing, size, and financing of projects. We also find that the positive relationship between wealth and self-employment rates may not arise from credit constraints: such a relationship is present even when credit is plentiful at low interest rates.     

Examining Turkey and member states of European Union in terms of health perspectives of millennium development goals

Development is related not only to production and increase in per capita income but also to social, cultural and political improvements. The purpose of development is that individuals would live long, healthy and happy lives thanks to economic development of society. From this perspective, it is obvious that the human factor is fundamental to the concept of development. This study examines the most important element in human development—health. As health indicators, it uses the health perspectives in the United Nations millennium development goals that are “reduce child mortality”, “improve maternal health” and “combat HIV/AIDS, malaria and other diseases”. In the study, European Union (EU) member states and candidate country Turkey are compared in terms of health related goals among millennium development goals by using Multidimensional scaling and Cluster analysis. Initially, countries with similar and dissimilar health indicators are mapped in multidimensional space by multidimensional scaling analysis. Further, the same method is used to reveal similar and dissimilar health indicators among countries. Then, the findings are compared using Cluster analysis and are identified to be similar.     

Adverse selection in cryptocurrency markets

In this article we investigate the influence that information asymmetry may have on future volatility, liquidity, market toxicity, and returns within cryptocurrency markets. We use the adverse-selection component of the effective spread as a proxy for overall information asymmetry. Using order and trade data from the Bitfinex exchange, we first document statistically significant adverse-selection costs for major cryptocurrencies. Also, our results suggest that adverse-selection costs, on average, correspond to 10% of the estimated effective spread, indicating an economically significant impact of adverse-selection risk on transaction costs in cryptocurrency markets. Finally, we document that adverse-selection costs are important predictors of intraday volatility, liquidity, market toxicity, and returns.