Explaining resistance to regulatory interventions to prevent obesity and improve nutrition: A case-study of a sugar-sweetened beverages tax in Australia

Globally, 43 jurisdictions have implemented a tax on sugar-sweetened beverages (SSBs) for obesity prevention; however, there is significant political resistance to adopting such a policy in Australia. This paper applies Kingdon’s Multiple Streams Framework (MSF) to the case study of an SSB tax in Australia to identify barriers and enablers to policy adoption, and to inform future advocacy strategies in local and international contexts. A systematic search was conducted of scholarly literature, parliamentary documents and media articles relating to an SSB tax. Information retrieved was analysed and integrated under the ‘problem’, ‘policy’ or ‘political’ streams of the MSF. The findings reveal that Australia is a substantial way from having the conditions in place where a tax might be successfully implemented due to industry influence, fragmented advocacy efforts, political opposition to paternalistic policies, conflicting political agendas, and inadequate pressure for change from civil society. Opening a policy window will require a shift in political ownership of the obesity problem, or the coupling of an SSB tax to an alternative problem. The public health community also needs to agree that an SSB tax deserves greater priority, relative to alternative policies for addressing obesity, and to agree on the most effective tax design.     

China and international market integration: Evidence from the law of one price in the Middle East and Africa

We model market integration in the Middle East and Africa by analyzing price dispersion and testing the law of one price (LOP) on highly-comparable actual local retail prices of 135 goods and services across 23 countries in the region over the period of 1990–2016. Second-generation panel estimators are applied to four price benchmarks: Regional average, South Africa, China, and US prices. Cross-regional price dispersion diminishes considerably over time up to 2008, particularly for non-tradeables around China price. The test of LOP indicates the percentage of convergent prices is highest in China price benchmark, followed by US, South Africa, and regional average benchmarks. Direct estimation of the convergence speed confirms this order. Overall, the results show evidence of increasing market integration in Middle East and Africa but it appears to be driven by global forces and, especially, the rise of China as a new economic power. The results show that some emerging market economies, such as China, can step up and promote integration while traditional economic powerhouses, such as the USA and UK, disengage from international economic relations.     

国家科技创新能力时空差异性评价

科技创新规模扩张和科技创新效率提升是增强国家科技创新能力的两条关键途径。基于现有研究鲜有结合科技创新规模和科技创新效率开展国家科技创新能力评价的现状，采用因子分析法，系统筛选国家科技创新规模影响因素，并结合科技创新效率影响因素，完善国家科技创新能力评价指标体系，通过构建DEA Malmquist指数模型，评价不同时期国家科技创新效率变化指数，以及中国与全球10个国家科技创新能力的时空差异性。研究表明，R&D投入强度、R&D研究人员、专利申请量、科技期刊文章数、高科技产品出口额占制成品出口总额的百分比、科技创新效率是影响国家科技创新能力的关键指标；1991-2014年中国科技创新能力水平呈指数增长态势，有力提升了国家科技实力；全球10个国家科技创新能力水平除日本出现一定波动外，其余九国整体呈小幅递增态势。     

Pricing practices and firms' market power in international cellular markets, an empirical study

Previous studies on international marketing have typically asked the question: “how is the demand characterized across countries?” Such analysis is then used to provide guidelines for firms to enter new markets and/or to allocate marketing resources across countries. To provide such normative guidelines, however, one also needs to analyze the supply-side of the problem, i.e., ask: “what is the likely market power that firms will be able to command in different countries?” Building on the New Empirical Industrial Organization (NEIO) framework, recent research in marketing provides marketers with a variety of models to explore competitive interactions among firms in the context of a single market. The goal of this paper is to extend this literature to a multimarket/multinational context to help international marketers assess the likely market power they face when entering new countries. We illustrate the proposed method on the mobile telecommunications industry, using price and quantity data from 10 countries around the world, estimating firms' market power as a function of a number of country characteristics.The results indicate that, while the simple presence of competition diminishes firms' market power, it does not lead to perfect competition. Interestingly, a higher number of competitors in a country does not seem to have significant incremental effect on market power. In contrast, the country's commitment to a severe antitrust policy has a significant negative effect, while the monopolist's lead-time before competition is allowed has a significant positive effect on market power. These findings, together with a change in price elasticities as a result of competition, suggest that market power in different countries may originate from two sources: (i) collusive pricing among cellular operators and (ii) consumers' switching costs across service providers. For international marketers, the findings imply that the attractiveness of wealthier countries (with usually faster diffusion rates and larger market potential) may be mitigated by higher levels of competition (as a result of developed antitrust regulation and more consumer exposure to competitive marketing practices). From a policy point of view, it suggests that (in contrast to the conventional wisdom) simple deregulation may not be enough to reduce prices to competitive levels. In addition, a severe antitrust policy is crucial to achieve this goal.     

The Impact of Regulation Fair Disclosure on Information Asymmetry and Trading: An Intraday Analysis

This study examines the impact of Regulation Fair Disclosure (FD) on liquidity, information asymmetry, and institutional and retail investors trading behavior. Our main findings suggest three conclusions. First, Regulation FD has been effective in improving liquidity and in decreasing the level of information asymmetry. Second, retail trading activity increases dramatically after earnings announcements but there is a significant decline in institutional trading surrounding earnings announcements, particularly in the pre‐announcement period. Last, the decline in information asymmetry around earnings announcements is closely associated with a lower participation rate in the pre‐announcement period and more active trading of retail investors after earnings releases.     

Network neutrality and the nature of competition between network operators

The neutral architecture of the Internet is being challenged by various parties, such as network operators providing the connections to end-users, who are interested in gaining control of the information exchanged over the Internet. What are the effects on competition and welfare of such practices? Currently, there exists very little economic theory on network neutrality. This paper provides a preliminary analysis of the type of economic modeling that can address network neutrality, as well as of the type of results that can be expected.     

金融信用之法律制度支撑——一个法经济学视角的解读

金融活动的存在与正常运转有赖于良好的信用制度与法治环境,金融信用是金融业赖以生存的基础。良好的金融信用依靠多种因素的支持,法律制度的健全是关键。本文主要从法经济学的视角提出构建完善的金融信用法律制度体系,以此防范金融信用风险,保障国民经济的增长与发展,进而促进社会的安全与稳定。     

Some Cracks in the Empire of Chance (Flaws in the Foundations of Reliability)

Making quantified statements about the uncertainty associated with the lifelength of an item is one of the most fundamental tasks of reliability assessment. Most practitioners routinely do this using one of the several available statistical techniques. The purpose of this paper is two-fold. The first is to give the user an overview of the key tenets of two of the most commonly used parametric approaches. The second is to point out that these commonly used approaches involve strategies that are either ad hoc, or are in violation of some of the underlying tenets. A method that is devoid of logical flaws can be proposed, but this method is difficult to implement. The user must therefore resign to using that technique against which the fewest objections can be hurled.     

论经济法的国家安全职能

国家经济安全是整个国民经济持续、健康、快速发展的前提，它可以被分为宏观经济安全和发展安全。要使一个国家经济能够安全运转，就需要强有力的保障措施。安全是法律持续性的制度安排，是一切法律的首要价值，所以保障国家经济安全，法律责无旁贷。在众多法律部门中，经济法作为国家干预经济的法律，目的就是克服市场调节的弊端，保障国家的经济安全。     

融资优序与行业管制——兼析中国上市公司“异常融资优序”现象

企业融资先通过内部资金进行,然后再通过银行借款或发行低风险的债券,最后才采用股票,这种融资的“先后顺序”是企业出于降低融资成本和防止剩余利润被分享所做出的理性选择,这就是融资优序理论。本文认为,寡头竞争所形成的行业进入壁垒为优序融资的实现提供了必须的市场环境,其资金使用方式能够优化资源配置,提高资金的使用效率。融资优序理论在发达市场经济国家得到了实践的验证,但在我国上市公司中却存在“异常融资优序”(Abnormal pccking Order)现象,即外部资金优于内部资金,外部资金中股权融资优于债权融资。其原因在于,中国市场经济不太完善,缺乏通过寡头竞争自发形成的行业进入壁垒。本文认为只有采取行业管制手段,设置一定的行业进入壁垒,才能实现优序融资,从而达到优化资源配置的目的。