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排序方式: 共有144条查询结果,搜索用时 671 毫秒
21.
This paper analyzes an approach to correcting spurious regressions involving unit-root nonstationary variables by generalized least squares (GLS) using asymptotic theory. This analysis leads to a new robust estimator and a new test for dynamic regressions. The robust estimator is consistent for structural parameters not just when the regression error is stationary but also when it is unit-root nonstationary under certain conditions. We also develop a Hausman-type test for the null hypothesis of cointegration for dynamic ordinary least squares (OLS) estimation. We demonstrate our estimation and testing methods in three applications: (i) long-run money demand in the U.S., (ii) output convergence among industrial and developing countries, and (iii) purchasing power parity (PPP) for traded and non-traded goods. 相似文献
22.
The value of the open innovation approach is now widely recognized, and the practice has been extensively researched, but still very little is known about the relative impact of firm‐level and laboratory‐level open innovation policies and practices on R&D performance. This study attempts to measure that impact by analyzing a sample of 203 laboratories of Japanese firms located in Japan. It examines simultaneously the effects of firm‐level open innovation policy and laboratory‐level external collaborations on laboratory R&D performance. The study aims to go beyond a general understanding of the importance of open innovation; it shows how an open innovation policy can have a positive and significant effect on collaborations between a laboratory and local universities or business organizations. The results also show how an open innovation policy can contribute to the laboratory's R&D performance by facilitating external collaborations by the laboratories. It demonstrates how these factors affect R&D performance in different ways, depending on the type of R&D tasks. Our findings suggest several theoretical and practical implications in the field of R&D management. 相似文献
23.
It is well known that many of the manufacturing practices advanced in Japan in the 1970s and 1980s emphasize bottom-up decision processes characterized by teams, the empowerment of multi-skilled workers on the shopfloor, demand-pull and horizontal decision mechanisms. These practices include Just-in-Time (JIT) and quality management practices such as quality circles (QC) and total quality management (TQM). While these practices continue to be effective under appropriate circumstances, the drastic appreciation of the Japanese yen that has taken place since the mid-1980s and the prolonged recession following the burst of the bubble have forced many Japanese manufacturers to adopt new methods to improve their production efficiency. In this paper we discuss one of such methods called Total Productivity Management (TPM). Unlike JIT or TQM, implementing TPM requires a top-down approach. TPM provides direct connections between corporate-wide objectives such as the overall cost reduction and shopfloor practices. It is possible that TPM has contributed significantly to Japanese manufacturers' recent success in reducing their cost of operation. © 1997 John Wiley & Sons, Ltd. 相似文献
24.
Based on the potential approach to interest rate modelling, we introduce a simple tractable model for the unified valuation of interest rate, currency and equity derivatives. Our model is able to accommodate the initial term structure of zero‐coupon bond prices, generate positive and bounded interest rates, and handle cross products such as differential swaps, quanto options and equity swaps. As our model is specified under the actual probability measure, it can be directly used for portfolio risk management and the computation of value at risk. Furthermore, our model yields simple analytical formulas that are easy to calibrate and implement. 相似文献
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26.
Choosing Price or Quantity? The Role of Delegation and Network Externalities in a Mixed Duopoly 下载免费PDF全文
Yasuhiko Nakamura 《Australian economic papers》2017,56(2):174-200
This paper considers a differentiated goods managerial mixed duopoly composed of one social welfare‐maximising public firm and one profit‐maximising private firm. We model the firm choice of the strategic contract. We find that when the strength of network effects is sufficiently strong, the price competition can become the unique equilibrium market structure. Furthermore, we show that there exists an area of the degree of product differentiation and the strength of network effects such that the situation wherein the public firm chooses its price contract whereas the private firm chooses its quantity contract can become the unique equilibrium structure. 相似文献
27.
Masao Seki 《WTO经济导刊》2010,(6):59-60
“企业社会责任对你们的企业意味着什么?”根据我们对成员企业的调查,82%认为,企业社会责任可以为建设可持续社会做出贡献。排名第二的答案是,可以作为创造企业价值的方法。排名第三的答案是,可以反映利益相关者对企业活动的希望。 相似文献
28.
Corrigendum to “Stable matchings and preferences of couples” [J. Econ. Theory 121 (1) (2005) 75–106]
We correct an omission in the definition of the domain of weakly responsive preferences introduced in [B. Klaus, F. Klijn, Stable matchings and preferences of couples, J. Econ. Theory 121 (2005) 75–106] or KK05 for short. The proof of the existence of stable matchings [KK05, Theorem 3.3] and a maximal domain result [KK05, Theorem 3.5] are adjusted accordingly. 相似文献
29.
This study investigates determinants of debt covenants in Japanese loan markets. We focus on a unique monitoring mechanism by Japanese banks and hypothesise that debt covenants substitute for the traditional main bank governance. Consistently, we find that debt covenants are less likely to be used for firms with stronger ties with their main banks. We also document that such use of debt covenants results in borrower’s upward earnings management. Overall, our evidence suggests that, in the Japanese context, debt covenants are used as a substitute for the main bank system yet they alone are an incomplete monitoring mechanism. 相似文献
30.