Liquidity commonality in commodities

We examine liquidity commonality in commodity futures markets. Using data from 16 agricultural, energy, industrial metal, precious metal, and livestock commodities, we show there is a strong systematic liquidity factor in commodities. Liquidity commonality was present in 1997–2003 when commodity prices were relatively stable and during the recent boom. There is some support for both “supply-side” and “demand-side” explanations for this commonality. We find no evidence of a consistent link between stock and commodity liquidity in general. Energy commodities appear to provide a better hedge against equity market liquidity risk than the other commodity families.     

微型晶体振荡器的研制

本文介绍的微型晶体振荡器有普通型、快速加热简易恒温型、多信号输出等三种类型晶振.其中快速加热简易恒温型在常温下工作时,频率—温度特性达10~(-7),在正温范围工作时,频—温特性达lO~(-6)/(0℃～80℃),多信号输出型目前已作出的每台晶振有1OMHz、5MHz、1MHz、500KHz、1OOKHz等五个频率的信号输出,其频率稳定度为10~(-5).晶振的振荡电路、放大电路、温控电路及分频电路,均以集成技术来实现,并与石英晶体谐振器—同用电阻焊密封于16×16×5.5(mm)~3的金属盒内,其重小于5克.     

Stock markets, banks, and economic growth: Empirical evidence from the MENA region

Over the last four decades, a wide theoretical debate is concerned with the fundamental relationship between financial development and economic growth. Recent studies shed some light on the simultaneous effect of banks and financial system development on growth rather than a separate impact. The empirical study is conducted using an unbalanced panel data from 11 MENA region countries. Econometric issues will be based on estimation of a dynamic panel model with GMM estimators. Thus, peculiarities of MENA region countries will be detected. The empirical results reinforce the idea of no significant relationship between banking and stock market development, and growth. The association between bank development and economic growth is even negative after controlling for stock market development. This lack of relationship must be linked to underdeveloped financial systems in the MENA region that hamper economic growth. Then, more needs to be done to reinforce the institutional environment and improve the functioning of the banking sector in the MENA region. Based on these results, other regions at the same stage of financial development such as Africa, Eastern Europe or Latin America should improve the functioning of their financial system in order to prevent their economies from the negative impact of a shaky financial market.     

Declining Discount Rates: The Long and the Short of it

The last few years have witnessed important advances in our understanding of time preference and social discounting. In particular, several rationales for the use of time-varying social discount rates have emerged. These rationales range from the ad hoc to the formal, with some founded solely in economic theory while others reflect principles of intergenerational equity. While these advances are to be applauded, the practitioner is left with a confusing array of rationales and the sense that almost any discount rate can be justified. This paper draws together these different strands and provides a critical review of past and present contributions to this literature. In addition to this we highlight some of the problems with employing DDRs in the decision-making process, the most pressing of which may be time inconsistency. We clarify their practical implications, and potential pitfalls, of the more credible rationales and argue that some approaches popular in environmental economics literature are ill-conceived. Finally, we illustrate the impact of different approaches by examining global warming and nuclear power investment. This includes an application and extension of Newell and Pizer [‘Discounting the benefits of climate change mitigation : how much do uncertain rates increase valuations?’ Journal of Environmental Economics and Management 46 (2003) 52] to UK interest rate data.     

Customer Participation Behavior in High- Versus Low-Contact Services: The Multiple Roles of Customer Trust

ABSTRACT

In light of the changing roles of customers from service co-producer to value co-creator, the customer participation literature has conceptualized two types of participation behavior: co-production and value co-creation. However, there is a dearth of knowledge concerning both the antecedents of customer co-creation behavior and the outcomes of such behavior in relation to customer-perceived value and loyalty. Anchored in the trust-commitment theory, the present research (a) examines the effect of how a customer's trust in the service personnel could affect his/her cooperative behavior over the service design and delivery processes; and (b) investigates how the potential impact of a customer's trust in service personnel on his/her co-design and co-delivery behavior could be made contingent upon the customer's trust in the service brand and the types of high- versus low-customer-contact service contexts. Filling the aforementioned research gaps, the present research contributes to advance our knowledge of the roles played by trust at different levels of analysis in facilitating customer participation behavior and improving our appreciation of the customer contact service contexts when designing the service organization for maximizing service value and sustaining brand loyalty over time.     

Rare disaster risk and the expected equity risk premium

Consistent with the predictions of rare disaster models, we find that a proxy for the time‐varying probability of rare disasters helps to explain fluctuations in expectations of the equity risk premium. Our proxy for disaster risk is a recently developed measure of global political instability, and the expected market risk premium is from Value Line analysts' expected stock returns. Consistent with long‐run risk models, uncertainty about expected GDP growth and expected consumption growth is also significantly positively related to the expected market risk premium. We obtain similar results when we use the earnings–price ratio and the dividend–price ratio as proxies for the expected market risk premium.     

Establishing the validity of cycle path capacity assumptions in the Highway Capacity Manual

Cycle mode share increase is widely desired, but highway design practitioners lack the numerical tools to deliver infrastructure, instead relying on design standards and intuition, with little literature basis. As a case in point, the US Highway Capacity Manual (which is well used internationally) has developed levels of service for cycle infrastructure that are, at their core, based on an assumption of noninteraction between multiple cyclists. This paper uses a modified implementation of the Social Force Model to test the validity of this assumption. Necessary changes such as the consideration of acceleration characteristics and minimum maintainable speed are included. The resulting model produces valid outcomes in keeping with established traffic flow properties, reflecting three-phase traffic flow theory and the ability for the stochastic elements in traffic flow to cause flow breakdown. The developed simulation indicates that there is a fundamental difference in outcome if cyclists are assumed to have a fixed speed versus one they can change given their surroundings. This difference in outcomes is found to exist within the range of literature design flow capacities for bicycle infrastructure and also yields emergent outcomes that align closely with those known behaviors of highway vehicles, which intuitively transfer to cyclists. These findings reinforce the standing need for large-scale empirical studies to determine the basic numerical and behavioral parameters for cyclists, upon which all design ultimately rests.     

How Robust is the Kearney/Foreign Policy Globalisation Index?

We argue that the Kearney/Foreign Policy (KFP) index of globalisation is constructed by making some problematic assumptions about the measurement, normalisation and weighting of the variables included in the index. We propose alternative measurement, normalisation and weighting rules, and using these rules, recalculate the ranking of the fifty countries, using the original KFP data. Specifically, we use, in various combinations: (i) variables ‘adjusted’ for geographical characteristics of countries; (ii) statistically optimal weights obtained by principal components analysis; (iii) a normalisation rule that treats different years of observations separately. We find that the country rankings change significantly when adjusted variables are used, indicating that the original KFP index is partially measuring geographical differences between countries.     

Emerging Market Multinationals: Coopetition for Global Growth

Since the dramatic geopolitical shift toward liberalization in the last century, emerging‐market multinational enterprises (EMNEs) have become major players in global markets and continue to account for an increasing share of global foreign direct investment (FDI) flows. Given this trend, the questions of how and why EMNEs pursue FDI deserve greater attention. This article builds on recent work that uses resource dependence theory (RDT) to explain EMNE internationalization strategies. We propose that EMNEs, while often resource deficient relative to their developed‐market competitors and, therefore, more dependent on others in the external environment, are uniquely positioned to overcome these deficiencies over time through simultaneous cooperation and competition—coopetition—with their global rivals and host‐ and home‐country governments. These propositions contribute to the EMNE internationalization literature by more fully incorporating RDT into current theories of internationalization, highlighting the importance of managing dependencies over time to maximize global growth. © 2015 Wiley Periodicals, Inc.