Welfare gains from optimization in dynamic planning models

This paper compares the results of two multisectoral models used to plan the dynamic consistency of sectoral investment. Solution of an optimizing model forecasts a frontier of the economy's future choice set. This frontier represents a ten year welfare gain only 2 or 3 percent greater than any investment program simulated by a dynamic Leontief system. The paper explains what efficient behavior accounts for the better performance of the optimizing model. Developing dynamic programming models is costly in terms of data, computational complexity, man-machine interaction, and solution interpretation. Therefore, it is recommended that the lessons derived by working with the dynamic LP be applied to improve the planner's control of the less expensive input/output simulation model.Final Draft for Economics of Planning-April, 1975H. G. Bergendorff is a staff economist at the Development Research Center of the World Bank, P. B. Clark is Staff Director, Center for Energy Policy (Boston, Mass., U.S.A.) and L. Taylor is Professor of Nutrition Economics at Massachusetts Institute of Technology. The project has been sponsored by the Development Research Center of the World Bank. The authors are grateful for the collaboration of Alejandro Foxley and Paul Ide in early versions of this study and for the assistance of Lucy Cardwell, Jon Eaton, Ruth Sheshinski, and Mieko Nishimizu during the computation phase. Any errors and the interpretations expressed are the responsibility of the authors alone.     

Dynamic Capabilities and Organizational Performance: A Meta‐Analytic Evaluation and Extension

We move the dynamic capabilities view (DCV) forward in two important ways by meta‐analysing prior empirical studies. First, we evaluate the two core theoretical tenets of the DCV: (1) Dynamic capabilities are positively related to performance, and (2) this relationship is stronger in industries with higher levels of technological dynamism. We find support for the former (r_c = 0.296) but not for the latter, though results suggest the existence of moderators. Second, we theorize and demonstrate empirically that higher‐order dynamic capabilities are more strongly related to performance than lower‐order dynamic capabilities, lower‐order dynamic capabilities partially mediate the relationship between higher‐order dynamic capabilities and performance, and dynamic capabilities contribute more to performance in developing economies than in developed economies. These findings illustrate how the nature of the dynamic capability and the economic context in which it is utilized shape its value, thus offering a more nuanced conceptualization of the dynamic capabilities‐performance relationship.     

IDENTIFICATION METHODS IN VECTOR‐ERROR CORRECTION MODELS: EQUIVALENCE RESULTS

In a structural vector‐error correction (VEC) model, it is possible to decompose the shocks into those with permanent and transitory effects on the levels of the variables. Pagan and Pesaran derive the restrictions which the permanent–transitory decomposition of the shocks imposes on the structural VEC model. This paper shows that these restrictions are equivalent to a set of restrictions that are applied in the methods of Gonzalo and Ng and King et al. (KPSW). Using this result, it is shown that the Pagan and Pesaran method can be used to recover the structural shocks with permanent effects identically to those from the Gonzalo and Ng and KPSW methods. In the former case, this is illustrated in the context of Lettau and Ludvigson's consumption model and in the latter case in KPSW's six variable model. There are also two other methods for which the Pagan and Pesaran approach can deliver identical permanent shocks which are also discussed.     

A Cross-Cultural Investigation of the Ethical Dimensions of Alcohol and Tobacco Sports Sponsorships

While the sport industry has grown into a multi-billion dollar international business with unique ethical concerns, there is little empirical research examining the ethics involved in sport sponsorships, especially sponsorship of alcohol and tobacco brands. This study investigates the potential influence of culture and gender on future practitioners' willingness to work in the tobacco and alcohol sport sponsorship areas. The nature of the relationship between sports, alcohol and tobacco is reviewed, along with past research on variables noted to influence ethical decision making. Three hypotheses are investigated for differences between American and Australian students. A cultural difference in ethical perceptions is supported, while gender differences are not significant. The implications of these findings are discussed, along with the study's limitations and future directions for ethics research in sport marketing.     

Labour Management as Development of the Integrated Developmental State in China

The application of the developmental state concept outside its birthplace in East Asia is generally unsuccessful. The culprit is the ‘laundry list’ method commonly seen in the literature. In this paper a ‘strategic capacity’ conceptualisation is used instead, with emphasis on its diverse institutional underpinnings. The paper demonstrates that the Chinese state's approach to industrial relations is integrated with its national development strategy and that crafting institutions of labour management is part of the state's effort at building up its strategic capacity for political, social and economic management. The study delineates the factors shaping labour management institutions, paying special attention to the communist heritage that sets China apart from other developmental states. As such, the concept of developmental state has much wider application.     

Global warming and economic externalities

Despite worldwide policy efforts such as the Kyoto Protocol, the emission of greenhouse gases (GHG) remains a negative externality. Economic equilibrium paths in the presence of such an uncorrected externality are inefficient; as a consequence, there is no real economic opportunity cost to correcting this externality by mitigating global warming. Mitigation investment using resources diverted from conventional investments can raise the economic well-being of both current and future generations. The economic literature on GHG emissions misleadingly focuses attention on the intergenerational equity aspects of mitigation by using a hybrid constrained optimal path as the “business-as-usual” benchmark. We calibrate a simple Keynes-Ramsey growth model to illustrate the significant potential Pareto improvement from mitigation investment and to explain the equilibrium concept appropriate to modeling an uncorrected negative externality.     

客户需求的误区

许多公司在创新流程中倾听了客户的声音,但创新的成果却往往得不到用户的认可。这种情况如此普遍,以至于一些企业在创新过程中贬低客户需求的作用。但正确的理念是：客户需求可以而且应该引导创新,那么,问题出在哪里呢？