The efficient paths to infinity in closed leontief models

For a simple Leontief technology, the results of finite-horizon turnpike theorems are extended to the case of infinite horizon. Further qualitative information is obtained about the set of efficient programs. Uniqueness is discussed, and shown by an example to be not true in general.     

Optimal monetary policy in an economy with incomplete markets and idiosyncratic risk

This study investigates an incomplete markets economy in which the saving behavior of a continuum of infinitely lived agents is influenced by precautionary saving motives and borrowing constraints. Agents can use two types of assets (interest bearing IOUS and money) to smooth consumption. Money is valued because of a timing friction in the bond market. In particular, the bond market closes before agents observe their idiosyncratic productivity shock. I find that the Friedman rule is not optimal for this economy. The results indicate that the optimal allocation has a rate of inflation of 10%, and a positive amount of private credit held by the government. A positive inflation rate transfers resources from agents with big endowments to those holding bonds which improves risk sharing, and therefore, welfare. However, for higher rates of inflation, agents economize on money holdings, offsetting the insurance effects, and causing a reduction in welfare. Furthermore, higher rates of inflation discourage agents from borrowing, and the endogenous lower bound on bond holdings is higher than the exogenous borrowing limit. High rates of inflation, therefore, exacerbate frictions in the bond market.     

A credit scoring approach for the commercial banking sector

For managing credit risk, commercial banks use various scoring methodologies to evaluate the financial performance of client firms. This paper upgrades the quantitative analysis used in the financial performance modules of state-of-the-art credit scoring methodologies. This innovation should help lending officers in branch levels filter out the poor risk applicants. The Data Envelopment Analysis-based methodology was applied to current data for 82 industrial/manufacturing firms comprising the credit portfolio of one of Turkey's largest commercial banks. Using financial ratios, the DEA synthesizes a firm's overall performance into a single financial efficiency score—the “credibility score”. Results were validated by various supporting (regression and discriminant) analyses and, most importantly, by expert judgments based on data or on current knowledge of the firms.     

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.     

Systematic Risk in Conventional and Islamic Equity Markets

We aim to compare the systematic risk in conventional and Islamic equity markets by introducing two dynamic risk measures. Accordingly, the level of the systematic risk in conventional markets is slightly higher than the risk in Islamic markets for most of the time. However, this difference is significant in less than 3% of the sample period. More importantly, there is no significant difference in the levels of systematic risk during the global financial crisis of 2008, suggesting that Islamic equities are not able to provide a lower market risk compared with their conventional counterparts in financial turbulent times.     

How the poor in a developing country view business' contribution to quality-of-life 5 years after a national economic crisis

This study proposes and tests a three-step model of business' contribution to quality of life 5 years after a devastating national economic crisis in a developing country. The model incorporates both a beneficent dimension of the marketplace (represented by consumer attitude toward marketing — CATM) and a non-maleficent dimension (represented by consumer trust for market-related institutions — CTMRI). This study compares how the poor and the non-poor draw differently on these two dimensions in forming their perceptions about how business contributes to their quality of life. Beginning with the exogenous construct attitude toward changes in marketing practices since the last economic crisis (5 years ago), this study 1) proposes a causal model that introduces a first-order construct — Business' Contribution to My Quality of Life (BCM-QOL), and 2) explains how BCM-QOL serves as a mediator between marketplace perceptions of both beneficence and non-maleficence and quality of life. Results reveal differences between how the poor and the non-poor in a developing country think about the effects of market changes after an economic crisis. Consumers living below the Turkish poverty line, although not within the UN-defined ranks of the global poor (e.g., $2 per-day earnings) tend to see their place in the market in a manner similar to subsistence consumers.     

Implementation of market orientation in the subsidiaries of global companies: the role of institutional factors

Drawing upon the market orientation literature and institutional theory, this study examines the factors that affect the implementation of market orientation in the subsidiaries of global companies, using data gathered from multiple informants and multiple sources in 79 subsidiaries located in 45 countries. Findings indicate that the market orientation of subsidiaries is positively related to the legal institutions, local competition in the host country market, and the market orientation of headquarters. The findings also indicate that the headquarters’ market orientation has more pronounced effects on the implementation of market orientation for subsidiaries that strongly identify with headquarters. Moreover, the study demonstrates that cultural distance between home and host countries of the subsidiary strengthens the positive effects of competitive intensity on market orientation implementation. As such, this research addresses an important concern among researchers and managers that is related to how to increase the market orientation and, thereby, the performance of their subsidiaries located in foreign countries.     

Rehearsal of professional practice: impacts of web-based collaborative learning on the future encounter of different disciplines

This study argues that the shift towards a more multidisciplinary professional life in contemporary design practice requires design curricula to equip students with collaborative skills. The study offers that by the aid of web-based collaborative learning (WBCL) in design education, different disciplines may be brought together during their education. A case study is held as a rehearsal of professional life; involving architecture and interior architecture students collaborating on a common project, using WBCL. The evaluations of the participating students about the process were analyzed. The findings convey that there is a mutual problem of recognition of professional domains. In order to diagnose and possibly reconcile tensions that may occur due to this problem in professional life, this paper asserts that integrating interdisciplinary work to the design curricula would be beneficial.