Measuring Monopoly Power,Revisited

The accuracy of monopoly power measures derived from case studyeconometric models has been questioned recently by Hyde andPerloff (1995) and Boyer (1996). Using the standard industry-formof that model, Hyde and Perloff show that the parameter estimatesassociated with monopoly power are highly sensitive to mis-specificationsof the demand and supply functional forms. Boyer'scriticism is made in principle: he reproves the model for generallyfailing to.... capture the diversity and complexity of oligopoly ... in respect to entry, product differentiation, fixity of capital, capitaladjustment costs, dynamic demand linkages, and variations inmonopoly power over time and in the cross-section of firms. Whilethese several criticisms might appear to point at inherent weaknessesin the case study econometric approach, it is here arguedthat the problem lies in the usual empirical practice.     

Predictability of sustainable investments and the role of uncertainty: evidence from a non-parametric causality-in-quantiles test

In this article, we examine sustainable investments returns predictability based on the U.S. Dow Jones Sustainability Index (DJSI) and a wide set of uncertainty and financial distress indicators for the period 2002:01–2014:12. To this end, we employ a novel non-parametric causality-in-quantile approach that captures non-linearities in returns distribution. Based on our findings we conclude that the aggregate economic policy uncertainty (EPU) indicator and some components have predictive ability for real returns of the U.S. sustainable investments index. Moreover, if we split our sample to before and after the global financial crisis our results suggest that predictors carry causal information for real returns only in the after-crisis period. Finally, some marginal evidence of predictability from sovereign debt is also observed at the lower and upper ends of the conditional distribution of the real returns of sustainable investments. Our results might entail policy implications for investors and market authorities.     

ASIAN DEVELOPMENT AND ENVIRONMENTAL DILEMMAS

Rapid economic growth in the Asian-Pacific region provides economic hope for the region's low-income countries but raises international environmental dilemmas and could be unsustainable. The strong international and Asian political support for Asia's economic growth often makes little mention of the environmental issues involved. The natural resources water, air, and soils as well as Asia's conservation of living resources and maintenance of biodiversity are important environmental issues. Tourism development—especially ecotourism—could combine economic development and conservation, but as Asian examples illustrate, it has limitations. Other environmental influences include the rapid urbanisation of Asia and the likelihood of increased international and transboundary conflicts over use of natural resources as economic growth in Asia proceeds. Markets and market reforms are not sufficient to deal with Asia's economic problems. Institutional and other reforms also are needed. One must reject the view that economic growth neglecting the environment is acceptable even in low-income countries. Polluting and degrading the environment now and repairing it later is a dangerous policy to follow, particularly for larger Asian countries. In fact, a strong case exists for high-income countries to support the environmental conservation efforts of low-income countries.     

The Digital Divide and Other Economic Considerations for Network Neutrality

In its 2016 Broadband Report, the Federal Communications Commission (FCC) recognizes that a rural/urban digital divide remains prevalent—especially with respect to broadband adoption. It also highlights several policies that the FCC has undertaken purportedly to reduce the divide, including the 2015 Open Internet Order (OIO)—in which the stated intent is to enforce “network neutrality.” However, long before the OIO, studies have raised concerns that network neutrality policies will discourage investment by internet service providers (ISPs) in broadband infrastructure, to the detriment of broadband accessibility, and may increase average consumer costs—both of which would only further exacerbate the digital divide. In this paper, we provide a holistic analysis of the effects of net neutrality on the digital divide; in doing so, we draw from recent economic research on this issue. Our goal is to present a range of economic considerations that should be taken into account when evaluating the overall impact of the OIO, with particular attention to its impact on the digital divide.     

A HIERARCHIAL OPTIMIZATION PROCEDURE FOR MAGROECONOMIC POLICY MODELS

An area of difficulty in the effective application of econometric models to determine optimal macroeconomic policy is the specification of the welfare functional. In such models it is required to synthesize a scalar-valued criterion which properly relates tho joint effects of various economic factors. This paper develops a systematic procedure for treating (his problem when the several variables of the criterion are set forth in preference by a lexicographic ordering. In capsule, the procedure gives sequential attention to the various factors, with the constraint set at a given optimization stage determined by the characteristics of the solution at all prior stages.     

Understanding analysts' use of stock returns and other analysts' revisions when forecasting earnings

We investigate analysts' use of stock returns and other analysts' forecast revisions in revising their own forecasts after an earnings announcement. We find that analysts respond more strongly to these signals when the signals are more informative about future earnings changes. Although analysts underreact to these signals on average, we find that analysts who are most sensitive to signal informativeness achieve superior forecast accuracy relative to their peers and have a greater influence on the market. The results suggest that the ability to extract information from the actions of others serves as one source of analyst expertise.     

A differential evolution copula-based approach for a multi-period cryptocurrency portfolio optimization

Recent years have seen a growing interest among investors in the new technology of blockchain and cryptocurrencies and some early investors in this new type of digital assets have made significant gains. The heuristic algorithm, differential evolution, has been advocated as a powerful tool in portfolio optimization. We propose in this study two new approaches derived from the traditional differential evolution (DE) method: the GARCH-differential evolution (GARCH-DE) and the GARCH-differential evolution t-copula (GARCH-DE-t-copula). We then contrast these two models with DE (benchmark) in single and multi-period optimizations on a portfolio consisting of five cryptoassets under the coherent risk measure CVaR constraint. Our analysis shows that the GARCH-DE-t-copula outperforms the DE and GARCH-DE approaches in both single- and multi-period frameworks. For these notoriously volatile assets, the GARCH-DE-t-copula has shown risk-control ability, hereby confirming the ability of t-copula to capture the dependence structure in the fat tail.     

Controlling-minority shareholder incentive conflicts and directors’ and officers’ liability insurance: Evidence from China

This paper examines the demand for directors’ and officers’ liability insurance (D&O insurance) by Chinese listed companies where controlling-minority shareholder incentive conflicts are acute due to the concentrated and split ownership structure. We hypothesize and find evidence that the incidence of seeking D&O insurance is positively related to the extent of controlling-minority shareholder incentive conflicts – a finding not previously documented in the literature. Using an event study, we find that the announcements of D&O insurance decisions in firms that engage in earnings management, and/or are controlled by a local government (such firms tend to have stronger incentives to tunnel), seem to have a negative wealth effect. In addition, the incidence of the D&O insurance decision is positively related to the proportion of independent directors and several litigation risk proxies. Therefore, the breakthrough in corporate governance and judicial reforms has created non-negligible perceived securities litigation risks in China.     

Which boundaries? How mobility networks across countries and status groups affect the creative performance of organizations

Research summary : Losing key employees to competitors allows an organization to engage in external boundary‐spanning activities. It may benefit the organization through access to external knowledge, but may also increase the risks of leaking knowledge to competitors. We propose that the destination of departed employees is a crucial contingency: benefits or risks only materialize when employees leave for competitors that differ from the focal organization along significant dimensions, such as country or status group. In the context of the global fashion industry, we find that key employees' moves to foreign competitors may increase (albeit at a diminishing rate) their former employers' creative performance. Furthermore, firms may suffer from losing key employees to higher‐ or same‐status competitors, but may benefit from losing them to lower‐status competitors. Managerial summary : Losing key employees to competitors can provide organizations with access to external knowledge, but increase risks of leaking knowledge to competitors. We find that an organization's access to external knowledge and its risks of knowledge leakage through employee mobility may be affected by whether its employees leave for competitors in a foreign country or in a different status group. In the context of the global fashion industry, we show that key employees' moves to foreign competitors increase (up to a point) their former employers' creative performance. Furthermore, firms may suffer from losing key employees to higher‐ or same‐status competitors, but benefit from losing them to lower‐status competitors. Hence, executives in creative industries and possibly beyond could welcome losing employees to competitors in foreign countries or to lower‐status competitors. Copyright © 2016 John Wiley & Sons, Ltd.