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171.
Enterprise integration research focuses on the development and integration of models with the goal of analysis and improvement of an enterprise. Cognitive engineering research focuses on the problem solving requirements of humans in complex systems with the goal of designing more effective systems. This paper presents a particular approach to cognitive engineering - model-based intelligent support - and draws implications to the design and development of enterprise models and tools. Specifically, we discuss the realm of distributed supervisory control, propose a knowledge architecture and theory of human - machine interaction to support cooperative problem solving, and link this to current enterprise integration research. Examples are drawn from the spacecraft operations domain. 相似文献
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173.
Patricia Kanashiro 《Business Strategy and the Environment》2020,29(4):1634-1646
Firms have increasingly adopted environmental governance mechanisms in the form of environmental compensation and environmental board committees. The current study examines the argument that such environmental governance mechanisms contribute to lower toxic emissions in high‐polluting industries. The sample comprises firms that were part of the S&P 500 from the years 2006 to 2011 and were mandated to report toxic emissions to the U.S. Environmental Protection Agency under the Toxic Release Inventory program. A panel regression model with propensity score matching was employed to minimize endogeneity bias. The results indicate that environmental compensation is a compelling incentive to motivate managers to invest in long‐term and highly uncertain environmental projects. Likewise, the presence of an environmental board committee appears to be significant, suggesting that directors contribute to a firm's strategy with their expertise and political influence. This research also found evidence supporting the cumulative adoption of both environmental governance mechanisms in enhancing environmental performance and the firm's legitimacy. 相似文献
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Patricia Chelley-Steeley Keebong Park 《International Review of Financial Analysis》2011,20(5):244-251
In this paper we examine the intraday trading patterns of Exchange Traded Funds (ETFs) listed on the London Stock Exchange. ETFs have been shown to be characterised by much lower bid–ask spread costs and by lower levels of information asymmetry than individual securities. One possible explanation for intraday trading patterns is that concentration of trading arises at the start of the trading day because informed traders have private information that quickly diminishes in value as trading progresses. Since ETFs have lower trading costs and lower levels of information asymmetry we would expect these securities to display less pronounced intraday patterns than individual securities. We fail to find that ETFs are characterised by concentrated trading bouts during the day and therefore find support for the argument that information asymmetry is the cause of intraday volume patterns in stock markets. We find that ETF bid–ask spreads and volatility are elevated at the open but not at the close. This lends support to the “accumulation of information” explanation that sees high spreads and volatility at the open as a consequence of information accumulating during a market closure and impacting on the market when it next opens. 相似文献
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178.
Preferential Liberalization,Antidumping, and Safeguards: Stumbling Block Evidence from MERCOSUR
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There is not yet consensus in the trade agreements literature as to whether preferential liberalization leads to more or less multilateral liberalization. However, research thus far has focused mostly on tariff measures of import protection. We develop more comprehensive measures of trade policy that include the temporary trade barrier (TTB) policies of antidumping and safeguards; studies in other contexts have also shown how these policies can erode some of the trade liberalization gains that arise when examining tariffs alone. We examine the experiences of Argentina and Brazil during the formation of the MERCOSUR over 1990–2001, and we find that an exclusive focus on applied tariffs may lead to a mischaracterization of the relationship between preferential liberalization and liberalization toward non‐member countries. First, any “building block” evidence that arises by focusing on tariffs during the period in which MERCOSUR was only a free trade area can disappear once we also include changes in import protection that arise through TTBs. Furthermore, there is also evidence of a “stumbling block” effect of preferential tariff liberalization for the period in which MERCOSUR became a customs union, and this result tends to strengthen upon inclusion of TTBs. Finally, we also provide a first empirical examination of whether market power motives can help explain the patterns of changes to import protection that are observed in these settings. 相似文献
179.
Linda F. Edelman Candida G. Brush Tatiana S. Manolova Patricia G. Greene 《Journal of Small Business Management》2010,48(2):174-196
Firm growth is widely considered to be a measure of success for entrepreneurial businesses. Data indicate that there are systematic differences between minority and nonminority‐owned firms with respect to growth. Black entrepreneurs are 50 percent more likely to engage in start‐up activities than white entrepreneurs, however, black‐owned firms are smaller and less profitable than their white‐owned counterparts. Following the effort–performance–outcome–logic of expectancy theory and using data from the Panel Study of Entrepreneurial Dynamics (PSED), our paper investigates the differences between black and white entrepreneurs' motivations to start and intentions to grow a new venture. Findings indicate that there are significant differences in motivations between black and white entrepreneurs both in starting and in their intentions to grow the new venture. Implications for future research are discussed. 相似文献
180.
Robert E. Sabath Chad W. Autry Patricia J. Daugherty 《Journal of Business Logistics》2001,22(1):91-105
Many firms have shifted to response‐based supply chain systems instead of traditional push systems. Research results are presented covering a specific type of response‐based system, Automatic Replenishment Programs (ARPs), in which inventory restocking is triggered by actual sales. The paper looks at the influence of organizational structure, i.e., centralization versus decentralization, on ARP performance and information systems capabilities. Results are mixed. Decentralized firms reported higher performance relating to specific ARP‐related goals. However, no differences were found at a more global level when ARP relationship performance and profitability were examined. Even fewer differences were found between centralized and decentralized firms with respect to their information systems capabilities. 相似文献