The Ottoman dissolution and the İstanbul bourse between war and peace: a foreign exchange market perspective on the Great War

The participation of the Ottoman Empire in the First World War caused economic disruptions, huge budget deficits, surmounted inflation rates and excessive depreciation of Lira, the Ottoman currency. Based on the value of Lira against the currencies of Switzerland, Netherlands, Sweden that were not in the war, we focus on the effects of news about the war on the foreign exchange rates at the ?stanbul bourse from 1918 to 1919. Our results signify some dates, which match the announcements of the armistices and peace meetings, heralding continuous depreciation of Lira. Thus, the findings support the presence of an expectation on the dissolution of the Ottoman Empire with the peace, marked by the escalation of the loss in trust for the Lira and the power of the state in foreign exchange interventions.     

Returns to schooling in Kazakhstan

This paper examines rates of return to schooling in Kazakhstan using OLS (Ordinary Least Squares) and instrumental variable (IV) methodologies. We use spouse's education and smoking as instruments. We find that spouse's education is a valid instrument and that conventional OLS estimates that assume the exogenous nature of schooling, and hence do not control for endogeneity bias, may underestimate the true rates of return. The results indicate that the returns to schooling in Kazakhstan have increased with transition. This may reflect the relative scarcities of highly educated people in Kazakhstan with human capital that employers require and, following the market reforms, reward accordingly.     

Estimates of the macroeconomic costs of cyber‐attacks

This paper estimates the macroeconomic losses related to the cyber‐attacks originating from the information and communications technology (ICT) and the financial sectors. The study accounts for the interdependency of various economic sectors and looks to the cascading effect of cyber‐attacks on production network in the United States and leading Organisation for Economic Co‐operation and Development countries with the help of the input–output methodology and the World Input–Output Database. Our results suggest that cyber‐attacks that affect the ICT and finance sectors result in losses which also impact different economic sectors, due to cascading effects.     

Effects of correlation on intermittent demand forecasting and stock control

This study investigates the effects of three different types of correlation on forecasting and stock control of intermittent demand items. Applying appropriate forecasting and stock control methods to theoretically generated compound Poisson demand data we show that correlation in intermittent demand does play a role in forecast quality and stock control performance. Negative autocorrelation levels lead to higher service levels than positive values, while cost does not significantly change. Our results also show that high intermittency levels intensify these changes in service level. We also show that cross-correlation produces results in the opposite direction of autocorrelation in size or intervals; that is, positive (negative) cross-correlation leads to higher (lower) service levels.     

Foreign Equity Trading and Average Stock‐return Volatility

We examine whether there is a relationship between foreign equity trading and average total volatility, measured as the value‐weighted average of stock‐return variance in the Istanbul Stock Exchange. We employ foreign equity purchase and sale data to track changes in foreign equity trading, which not only enable us to capture effective foreign investor participation but also to observe the potential asymmetric effects of incoming and outgoing funds on the average total volatility. Consistent with the implications of the asymmetric information hypothesis, we find that net equity flow is positively associated with average total volatility. Furthermore, we show that net equity flow affects the average total volatility through the local and idiosyncratic volatilities, suggesting that foreign investors engage in the production of firm specific and market wide information.     

Identifying Key Success Factors for Social Enterprises Serving Base‐of‐Pyramid Markets through Analysis of Value Chain Complexities

There are people in this world who have little or no access to basic needs and they struggle financially, living on less than a handful of dollars a day. A better understanding of how to supply/serve the world's poor is needed. In this paper, through the lens of Porter's value chain framework we investigate the challenges and opportunities social enterprises face in base‐of‐pyramid (BoP) markets based on secondary data on 23 organizations. Our contribution is twofold: First, we analyze value chain complexities for the social enterprise based on the value creation role (consumer, coproducer) and income level (poverty, extreme poverty) of the local population. We find that nature of customers’ requirements varies across customer segments in the BoP markets and social enterprises face unique challenges in fulfilling such differentiated demand patterns. Second, we develop an affordability–accessibility framework that helps to identify the situations that may be favorable/unfavorable for social enterprises to meet the challenges in BoP markets. We make four propositions that social enterprises may use to cope with difficulties in affordability and accessibility. Our findings will be useful for such organizations to understand and design better supply chains for the base of pyramid.     

Peritoneal mesothelioma: Sonographic findings in nine cases

Ultrasonographic findings in nine cases of peritoneal mesothelioma are presented. The most common findings were sheetlike or nodular peritoneal thickening, soft tissue masses, fixation of the intestinal loops, mesenteric thickening, and minimal ascites which was disproportional to the degree of tumor dissemination. The authors found that abdominal sonography, using 3.75–7.5 MHz transducers, is a useful imaging method for diagnosis of peritoneal mesothelioma in high-risk groups.     

Green-tech firm creation in Germany: the role of regional knowledge

International Entrepreneurship and Management Journal - Due to the increasing awareness on environmental issues, the necessity to implement more sustainable technologies is becoming a central theme...