Commitment-based HR practices,different types of innovation activities and firm innovation performance

Research on human resource (HR) practices and innovation has increased in the strategic HR management literature over the last decades. Scholars suggest that commitment-based HR practices contribute to innovation performance of the firm. However, prior research puts little emphasis on the causal linkages among commitment-based HR practices, different types of innovation activities and firm innovation performance. This article opens the black box of the relationship between HR management and firm performance by examining the causal relationships among a bundle of commitment-based HR practices (i.e. a commitment-based HR system), different types of innovation activities and firm innovation performance. On the basis of a survey of 103 Turkish firms, empirical results show that a commitment-based HR system has a positive effect on process, organizational and marketing innovation activities. Furthermore, a commitment-based HR system mainly affects organizational innovation activities and shows that these innovation activities are the core drivers of process and marketing innovation activities, leading to higher rate of product innovation activities. Subsequently, product innovation activities enhance firm innovation performance, emphasizing their determinant role.     

The Impact of a Creativity‐supporting Work Environment on a Firm's Product Innovation Performance

Many scholars and practitioners have suggested that a creativity‐supporting work environment contributes to a firm's product innovation performance. Although there is evidence that such an environment enhances innovative behavior at individual level, very few studies address the effect of a creativity‐supporting work environment on product innovation performance at firm level, and the results are inconsistent. This paper examines the relationship between a firm's creativity‐supporting work environment and a firm's product innovation performance in a sample of 103 firms. For measuring a firm's creativity‐supporting work environment, a comprehensive and creativity‐focused framework is used. The framework consists of 9 social‐organizational and 12 physical work environment characteristics that are likely to enhance employee creativity. These characteristics contribute to the firm's overall work environment that supports creativity. The firm's product innovation performance is defined by two distinct concepts: new product productivity (NP productivity), which is the extent to which the firm introduces new products to the market, and new product success (NP success), which is the percentage of the firm's sales from new products. In most firms, different knowledgeable informants provided the data for the variables. The results show that firms with creativity‐supporting work environments introduce more new products to the market (NP productivity), and have more NP success in terms of new product sales (NP success). NP productivity partly mediates the relationship between creativity‐supporting work environment and NP success. The mediation model shows that the two paths from a creativity‐supporting work environment to NP success are about equally important: the direct path between creativity‐supporting work environment and NP success has a coefficient of .22, and the coefficient of the indirect path via NP productivity is .23. The creativity‐supporting work environment framework can be used in managerial practice to enhance employee creativity for product innovation. It allows applying a flexible and broad approach by influencing both social‐organizational and physical characteristics of the work environment.     

The Impact of Internet-Banking on Brick and Mortar Branches: The Case of Turkey

The increased adoption and infiltration of the Internet has recently redefined the playground for retail banks. Retail banks are now offering their services primarily through their Internet banking branches. The repercussions of this change to “brick and mortar” banks have been studied in the context of developed market economies. In this paper, we contribute to the literature by studying the impact of Internet banking adoption on banks’ deposit collection, lending activities, and performance in an emerging market setting. By using a panel of 18 retail banks that operate in Turkey from 1990–2008, we demonstrate that Internet banking adoption has a positive impact on the level of profits, deposits and loans per branch. As operational activities are now provided via Internet branches, Internet banking facilitates banking activities in branches that require more human input. We also find that Internet banking adoption has a negative impact on bank profitability after 2 years of adoption as Internet banking increases competition and results in lower interest income. Accordingly, Internet banking complements brick and mortar branches.     

LIQUIDITY IN A BINOMIAL MARKET

We study the binomial version of the illiquid market model introduced by Çetin, Jarrow, and Protter for continuous time and develop efficient numerical methods for its analysis. In particular, we characterize the liquidity premium that results from the model. In Çetin, Jarrow, and Protter, the arbitrage free price of a European option traded in this illiquid market is equal to the classical value. However, the corresponding hedge does not exist and the price is obtained only in L² ‐approximating sense. Çetin, Soner, and Touzi investigated the super‐replication problem using the same supply curve model but under some restrictions on the trading strategies. They showed that the super‐replicating cost differs from the Black–Scholes value of the claim, thus proving the existence of liquidity premium. In this paper, we study the super‐replication problem in discrete time but with no assumptions on the portfolio process. We recover the same liquidity premium as in the continuous‐time limit. This is an independent justification of the restrictions introduced in Çetin, Soner, and Touzi. Moreover, we also propose an algorithm to calculate the option’s price for a binomial market.     

Quality Level and Price in Turkish Durum Wheat Market

This study has been made to assess the influences and effects of durum wheat quality characteristics on the prices in Turkish durum wheat market. The current prices are determined as the result of the applied analysis, in respect to the quality characteristics of durum wheat. The Turkish durum wheat varieties are compared with the wheat varieties of other countries, from where Turkey is importing durum wheat in respect to the quality characteristics. It has been assessed that hectoliter and glassware are the major factors that have the greatest effect and influence on Turkish durum wheat market in respect to the quality aspects.     

The effect of firm characteristics in accessing credit for SMEs

Small and medium-sized enterprises (SMEs) play an important role in socio-economic development. Despite their significance, the failure rate for SMEs is considerably high, especially in developing economies. Among the widely pronounced reasons for the high failure rate is non-availability of external financing. This study examines various firm attributes that affect access to credit using a sample of 970 SMEs that operate across nine provinces of Mediterranean and Southeast Anatolia regions in Turkey. The results suggest that asset size, sales volume and stability, export rate, and legal form are important determinants of satisfaction with bank products and services. These results are consistent with the hypothesis that larger firms with high and stable sales revenues are more likely to have better access to and therefore benefit more from credit services offered by their local banks.     

The Impact of Country Diversification on Wealth Effects in Cross-Border Mergers

We posit that country diversification via cross‐border mergers creates wealth by providing benefits for firms that are not available to their shareholders. We hypothesize that these benefits are inversely related to the extent of co‐movement in the economies of the bidder's and target's countries. We examine the wealth effects of U.S. targets and bidders involved in cross‐border mergers with firms in other countries during 1982–1991. We show that wealth effects vary, depending on country affiliations of two merging firms, and are inversely related to the degree of economic co‐movement between the two countries.     

Deep empirical risk minimization in finance: Looking into the future

Many modern computational approaches to classical problems in quantitative finance are formulated as empirical loss minimization (ERM), allowing direct applications of classical results from statistical machine learning. These methods, designed to directly construct the optimal feedback representation of hedging or investment decisions, are analyzed in this framework demonstrating their effectiveness as well as their susceptibility to generalization error. Use of classical techniques shows that over-training renders trained investment decisions to become anticipative, and proves overlearning for large hypothesis spaces. On the other hand, nonasymptotic estimates based on Rademacher complexity show the convergence for sufficiently large training sets. These results emphasize the importance of synthetic data generation and the appropriate calibration of complex models to market data. A numerically studied stylized example illustrates these possibilities, including the importance of problem dimension in the degree of overlearning, and the effectiveness of this approach.