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排序方式: 共有2049条查询结果,搜索用时 140 毫秒
61.
Christopher S. Yoo 《Review of Industrial Organization》2014,45(3):295-321
The Communications Act of 1934 created a dual review process in which mergers in the communications industry are reviewed by the Federal Communications Commission (FCC) as well as the antitrust authorities. Commentators have criticized dual review not only as costly and redundant, but also as subject to substantive and procedural abuse. The process of clearing the 2011 Comcast–NBC Universal merger provides a useful case study to examine whether such concerns are justified. A review of the empirical context reveals that the FCC intervened even though the relevant markets were not structured in a way that would ordinarily raise anticompetitive concerns. In addition, the FCC was able to use differences between its review process and that used by the Justice Department to extract concessions from the merging parties that had nothing to do with the merger and which were more properly addressed through general rulemaking. Moreover, the use of voluntary commitments also allowed the FCC to avoid subjecting certain aspects of its decision to public comment and immunized it from having to offer a reasoned explanation or subjecting its decision to judicial review. The aftermath of the merger provides an opportunity to assess whether the FCC’s intervention yielded consumer benefits. 相似文献
62.
INFORMATION AGGREGATION,GROWTH, AND FRANCHISE EXTENSION WITH APPLICATIONS TO FEMALE ENFRANCHISEMENT AND INEQUALITY 下载免费PDF全文
We develop a model of voluntary gradual franchise extension and growth based on the idea that voting is an information aggregation mechanism. A larger number of voters means that more correct decisions are made, hence increasing output, but also implies that any incremental output must be shared among more individuals. These conflicting incentives lead to a dynamic model of franchise extensions that is consistent with several real world episodes, including female enfranchisement. The model also predicts that in certain circumstances growth and enfranchisement will be accompanied by Kuznets curve type behaviour in inequality. Contrary to the preceding literature these conclusions do not rest on incentives for strategic delegation. 相似文献
63.
64.
Irrigation water productivity in Cambodian rice systems 总被引:1,自引:0,他引:1
Knowledge of the marginal productivity of water is crucial for decisions about its allocation between uses, which is particularly important in the context of increasing competition for water. Using primary, plot‐level panel data, this article estimates the marginal productivity of water from supplementary irrigation in lowland rice systems in Cambodia, taking into account farmer and plot heterogeneity as well as self‐selection of supplementary irrigation. Our estimates indicate a range of elasticities for rice output with respect to water inputs of between 0.057 and 0.069 for wet season production, substantially lower than previous estimates based on either aggregate or trial data. We discuss the policy implications of these results, in particular with respect to the utility of demand management policies and the challenges they pose to the decentralization of water management to Farmer Water Users Groups. 相似文献
65.
66.
Monica Neamtiu Nemit Shroff Hal D. White Christopher D. Williams 《Journal of Business Finance & Accounting》2014,41(7-8):1071-1099
Standard finance theory suggests that managers invest in projects that, in expectation, produce returns that justify the use of capital. An underlying assumption is that managers have the information necessary to understand the distributional properties of the pay‐offs underlying the decision. This paper examines firm investment behavior when managers are likely to find it more challenging to develop expectations of pay‐offs, namely during periods of increased macroeconomic ambiguity. In particular, we examine how macroeconomic ambiguity – proxied by the variance premium (Drechsler, 2010 ) and the dispersion in forecasts of corporate profits from the Survey of Professional Forecasters (Anderson et al., 2009 ) – impacts managerial capital investment and cash holdings. Consistent with ambiguity theory, we find that macroeconomic ambiguity is negatively associated with capital investment and positively associated with cash holdings. These results are robust to alternative explanations related to risk, investor sentiment and economic conditions. Moreover, consistent with recent theoretical real options literature, we find that ambiguity reduces the value of investment opportunities, while risk increases the value of such opportunities. Overall, these findings provide initial empirical evidence on the economic distinction between ambiguity and risk with respect to managerial investment and cash holdings. 相似文献
67.
68.
Christopher Malikane 《Applied economics》2017,49(37):3741-3750
We derive a new Keynesian IS curve that is augmented to capture the direct effects of the labour share on output. Our derivation shows that the direct effect of the labour share on output is ambiguous. Furthermore, theory suggests that the expected labour share negatively affects output. Empirically, we find that the labour share plays a significant role in driving output dynamics. However contrary to theoretical expectation, the expected labour share positively affects output in some cases, a finding we call the ‘labour share puzzle’. We also find that over time, there seems to be a general shift in aggregate demand dynamics towards being profit-led, i.e. rising labour share decreases output. We conclude that policymakers should not ignore the labour share in their decisions. 相似文献
69.
Stephen J. Carson Robert D. Jewell Christopher Joiner 《Journal of the Academy of Marketing Science》2007,35(2):172-183
Prior empirical research suggests that consumers perceive pioneers as more prototypical (i.e., representative) of their product
categories than me-too followers. This prototypicality advantage is believed to contribute to an enduring marketplace advantage
for the pioneer. We extend research into pioneering prototypicality advantages by considering the ramifications of simultaneous
product design (i.e., product attribute) evolutions. We hypothesize that the simultaneous evolution of product designs of
both the pioneer and me-too will diminish the pioneer’s prototypicality advantage over the me-too, even though the me-too
does not initiate the change. To test our hypotheses, we create an experimental environment consisting of four cells, each
corresponding to a different marketplace scenario: a no-change condition; a simultaneous-evolution condition; a pioneer-updates-first
condition; and a leapfrogging (i.e., me-too updates first) condition. The results suggest that simultaneous design evolutions
can diminish the pioneer’s prototypicality advantage. As a result, me-too entry may be a more attractive strategy in the long-run
than currently believed in product categories characterized by substantial design evolution.
相似文献
Christopher JoinerEmail: |
70.
James Christopher Westland 《International Journal of Intelligent Systems in Accounting, Finance & Management》2020,27(2):95-107
This research developed and tested machine learning models to predict significant credit card fraud in corporate systems using Sarbanes‐Oxley (SOX) reports, news reports of breaches and Fama‐French risk factors (FF). Exploratory analysis found that SOX information predicted several types of security breaches, with the strongest performance in predicting credit card fraud. A systematic tuning of hyperparamters for a suite of machine learning models, starting with a random forest, an extremely‐randomized forest, a random grid of gradient boosting machines (GBMs), a random grid of deep neural nets, a fixed grid of general linear models where assembled into two trained stacked ensemble models optimized for F1 performance; an ensemble that contained all the models, and an ensemble containing just the best performing model from each algorithm class. Tuned GBMs performed best under all conditions. Without FF, models yielded an AUC of 99.3% and closeness of the training and validation matrices confirm that the model is robust. The most important predictors were firm specific, as would be expected, since control weaknesses vary at the firm level. Audit firm fees were the most important non‐firm‐specific predictors. Adding FF to the model rendered perfect prediction (100%) in the trained confusion matrix and AUC of 99.8%. The most important predictors of credit card fraud were the FF coefficient for the High book‐to‐market ratio Minus Low factor. The second most influential variable was the year of reporting, and third most important was the Fama‐French 3‐factor model R2 – together these described most of the variance in credit card fraud occurrence. In all cases the four major SOX specific opinions rendered by auditors and the signed SOX report had little predictive influence. 相似文献