Efficiency and Program‐Contract Bargaining in Spanish Public Hospitals

Abstract This paper analyses the evolution of productivity in Spanish public hospitals during the period characterised by the use of program‐contracts. The results demonstrate that a significant improvement has occurred. The decomposition of the Malmquist productivity index shows that efficiency change has been the main contributor to productivity improvement. We also analyse the dynamic implications of program‐contract bargaining. In particular, the data support the hypothesis that the bargaining process has been subject to a ratchet effect, i.e., the more a hospital does today, the more the hospital is asked to do in the future. This result threatens the credibility of the program‐contract as an incentive system .     

Tax‐deferred savings plans and interest deductibility

Abstract.  Programs that defer taxes on savings (e.g., RRSPs or 401(k)s) are supposed to move income tax systems closer to the more efficient consumption tax. Whether or not RRSPs move income tax systems away from or closer to a consumption tax depends on whether or not interest on debts incurred to make RRSP contributions is deductible for income tax purposes. If people optimize as assumed in simple life‐cycle models, then it may be that governments can convert a non‐linear income tax system to a proportional consumption tax system. I argue this is plausible for some Canadian households. JEL classification: H21, H24     

Constitutional Design and Investment in Cooperatives and Investor‐Owned Enterprises

Abstract This paper studies the role of the corporate governance system in cooperatives and in investor‐owned enterprises. We abstract from all possible differences between the two systems except the type of majority needed to take decisions: this is one‐head‐one‐vote for cooperatives and proportional to capital invested in investor‐owned firms. We show that the institutional form chosen matters for the initial investment decision of the agents: in particular we find that members of a cooperative invest less than they would in an investor‐owned enterprise.     

Structural Changes in the Development of European Co‐operative Societes

Abstract ** : In spite of the wealth of experience which co‐operative societies now have behind them, they have not gained uniform recognition across Europe. Supranational authorities such as the European Commission, the UN and the ILO have highlighted the important contribution made by co‐operative societies in the creation of employment and in the mobilization of resources particularly at the local level. For several years now, however, two different tendencies in the development of the European co‐operative movement are becoming apparent and they are analysed in this study. One is towards the creation of growth processes through formulas which aim to bring under the same roof asset holders who by their very nature are a difficult fit, all the while trying to maintain certain cooperative principles. And on the other hand, a tendency towards the creation of micro‐companies that act in local markets and allow for territorial development by means of the mobilization of local resources, based on local allegiance of the partners and democratic participation .     

G VC嵌入、无形资产要素与装备制造企业价值创造效率

将GVC因素引入企业价值创造体系中,基于效率视角揭示无形资产对企业价值创造的影响机理,以及GVC对该影响的调节机理,构建机理框架模型并提出研究假设。基于效率视角,选择无形资产对企业价值创造影响的评价方法并构建相应测度模型。基于中国装备制造企业数据进行实证研究,测度各无形资产要素对企业价值创造的影响方向和影响强度,以及GVC对无形资产影响的调节作用。最后,提出GVC下提升中国企业价值创造效率的策略建议。结果发现：品牌资产、知识产权、技术创新、产品功能和人力资源质量对企业价值创造均具有正向影响,而人力资源数量和有形资产则具有负向影响;GVC因素对企业价值创造具有正向影响,但影响强度不大;GVC对无形资本对企业价值创造效率的影响具有正向调节作用;通过嵌入GVC、重视企业品牌建设、加强企业技术创新和知识产权积累、提升企业人力资源质量等策略,可以有效提升企业价值创造效率。     

Estimating Quality‐adjusted Price Changes: Method and Application to VCRs

This paper uses scanner data to generate estimates of quality‐adjusted price changes for video‐recorders. We use hedonic regressions to derive estimates of the changing worth of each quality component. These are then applied to weighted changes in the mix of quality attributes of products to derive estimates of quality‐adjusted price (QAP) changes. The data source used is electronic‐point‐of‐sale (EPOS) scanner data that are available for a wide range of goods. This study provides an example of how such methods can be more widely applied. The estimates of QAP changes correspond to constant‐utility, (hedonic) cost‐of‐living indexes defined in economic theory as the ratio of expenditure functions at constant utility allowing for changing prices and characteristics of goods. This method is proposed as an improvement on the existing direct method , which takes its estimates directly from the coefficients associated with 'time dummies' in a hedonic regression. We finally undertake a matching process, akin to that used by statistical offices, and compare the results. Direct comparisons with RPI estimates and these hedonic approaches are not easy since the approaches use quite different data sets. Our replication of a procedure akin to that used for the RPI on the scanner data set provides insights into sources of potential bias.     

A Simple Characterization of the Second‐best Two‐part and Block‐rate Tariffs Theory and Applications

The general necessary optimality conditions for second‐best discrete multipart tariffs are rather complex. In this paper, we derive a simplified characterization of these conditions for two‐part tariffs and for block‐rate tariffs for given thresholds of these tariffs. The simplified necessary optimality conditions are equivalent to the necessary conditions for a Ramsey‐optimum for goods with continuously variable individually demanded quantities. We demonstrate that this characterization of second‐best multipart tariffs can be helpful, when applying the usual regulatory mechanisms to these tariffs. In particular, we consider Vogelsang–Finsinger (1979) regulation as well as a particular form of price‐cap regulation which is related to the Laspeyres index of prices.     

Finance–Growth Nexus and the P‐bias: Evidence from OECD Countries

Recent studies provide new empirical evidence confirming that financial development is linked to economic growth in OECD countries. Using new dynamic panel regression techniques, these appraisals indicate that within the group of high‐income countries stock market size as a measure of financial advancement contributes significantly to overall economic activity. Applying the same advanced techniques, this paper questions this conclusion by showing that the findings of these studies seem to be not only not robust with respect to adding new observations but also likely to be plagued by a severe price bias which belittles the information content of the used financial indicator (stock market capitalization). We provide evidence that anticipative price effects (i.e. expectations of future growth, reflected in current stock prices) may be driving the statistical relationship between stock market activities and economic growth in high‐income countries to a much larger extent than recent analyses of the finance– growth link in OECD countries suggest .     

企业开放式创新社区创意采纳影响因素研究——价值共创视角

从价值共创视角出发，基于信号传递理论，整合消费者使用企业产品创造价值、消费者与消费者互动创造价值、企业与消费者互动创造价值3个层面，探讨开放式创新社区中创意采纳影响因素。通过对小米MIUI社区创意的文本挖掘与实证分析发现，消费者使用企业产品创造价值层面，创意信息熵和情感强度正向影响创意采纳，创意长度负向影响创意采纳；消费者互动创造价值层面，支持量正向影响创意采纳，浏览量和评论量负向影响创意采纳；企业与消费者互动创造价值层面，企业回复信息熵和回复情感强度与创意采纳呈正相关，企业回复长度与创意采纳呈负相关。由此，建议企业规范消费者创意提出形式，注重需求一致性与异质性带来的市场需求信号，通过有效回复策略提升消费者创意质量，从而形成促进价值共创的良性循环。     

Trade, market size, and industrial structure: revisiting the home‐market effect

Abstract.  This paper shows that the issues in the recent discussion over the 'home‐market effects' are more complicated than previously thought. It is shown that, in general, market size matters for industrial structure even when both the homogeneous and the differentiated goods face transport costs. The home‐market effect for production structure can arise, disappear, or even reverse in sign. The analysis shall change a common perception about de‐industrialization of (small) economies and may also have important implications for the empirical research strategies in this area. JEL classification: F12, L1     

The Impact of the Rating Agencies' Through‐the‐cycle Methodology on Rating Dynamics

Surveys on the use of agency credit ratings reveal that some investors believe that credit‐rating agencies are relatively slow in adjusting their ratings. A well‐accepted explanation for this perception on rating timeliness is the through‐the‐cycle methodology that agencies use. Through‐the‐cycle ratings are intended to measure default risk over long investment horizons and to respond only to changes in the permanent component of credit quality. A second aspect of the through‐the‐cycle methodology is the prudent migration policy. In a benchmark study with a financial ratio‐based credit‐scoring models – an agency‐rating prediction model and default‐prediction models with various time horizons – we confirm the exclusive focus of agencies on the permanent component of credit quality and we model and quantify the agencies' prudent migration policy. A rating migration is triggered only when the rating predicted by the agency‐rating prediction model differs by at least a threshold level of 1.8 notch steps from the actual agency rating. If triggered, ratings are only partly adjusted by 70 per cent at the downside and 60 per cent at the upside. From a 1‐year point‐in‐time perspective, weighting temporary fluctuations in credit quality, the through‐the‐cycle methodology lowers the rating‐migration probability by a factor of 3.5. Both aspects of the through‐the‐cycle methodology contribute equally to this factor. The partial adjustment of ratings lowers the rating‐reversal probabilities on short term and introduces rating drift, the known serial correlation in agency‐rating migrations.     

数字平台生态系统价值生成逻辑

数字平台生态系统在价值生成过程中呈现出独特的价值逻辑。随着企业核心竞争优势向平台生态竞争优势转变，从数字化创新时代价值来源转向出发，明确价值生成的新逻辑范式，系统梳理价值界面延拓，并据此论证价值配置空间演变，分析数字平台生态系统连接经济带来的价值发现。基于数字平台生态系统价值取向，阐释启动阶段用户价值共创、扩张阶段天棚战略扩容、维护阶段价值隔离机制，进而揭示平台生态系统价值生成规律。研究结论为审视数字创新背景下的价值创造规律及数字平台生态系统行动与治理提供了新理论依据。     

The CES‐‐Translog Production Function, Returns to Scale and AES

The translog functional form imposes no a priori restrictions on the substitution possibilities between the factor inputs, by relaxing the assumption of strong separability, and the CES–translog cost function specification allows for testing homothetic technology with Hicks‐neutral technical change. In this paper an n ‐factor CES–translog production function is presented which develops the parameters to directly assess scale effects from those due to technology in the production structure. In addition, by applying Shephard's lemma it was possible to derive the input demand functions, as well as the partial elasticities of substitution and the cross‐partial price elasticities of demand for a generalized CES–translog production structure.     

Price stickiness, trend inflation, and output dynamics: a cross‐country analysis

Abstract.  Sticky price models based on menu costs predict that countries with high trend inflation should have (i) smaller impact effects of demand shocks on output and (ii) less persistent output fluctuations, relative to low‐trend inflation countries. These predictions are tested, controlling for changes in trend inflation, using a country‐specific approach. The results do not support the second prediction. That prediction is also not robust to a modified measure of trend inflation that excludes episodes of hyperinflation. These findings suggest that while price stickiness is important for understanding short‐run impact effects, real propagation mechanisms may drive persistence in output fluctuations.     

The closed‐loop effect and the profitability of horizontal mergers

Abstract.  We study the profitability of horizontal mergers in a dynamic competition context with sticky prices. It is shown that, when firms use open‐loop strategies, a merger is profitable only if the share of the market that merges is significant enough. In the case where firms use closed‐loop strategies we provide a method to conduct analytically the study of the profitability of horizontal mergers. We first prove the existence of an equilibrium of the game when a subset of firms merges. When firms use feedback strategies, mergers are profitable even when the share of the market that merges is arbitrarily small. JEL Classification:D4, L13     

The adjustment of external tariffs in the Kemp‐Wan‐Grinols compensation scheme

Abstract.  This paper considers the adjustment of external tariffs when two countries integrate and implement the Kemp‐Wan‐Grinols compensation scheme. Attention is also paid to the restrictions set by Article XXIV of GATT. This paper shows how the external tariffs would change in a three‐good, three‐country model under the assumption of gross substitutability. The results are sensitive to the initial trade pattern. In particular, they depend on the number of goods initially traded between the member countries. The analysis can be extended to a multi‐commodity model if the preferences of the countries have identical CES representation. JEL classification: F11, F15     

Kyou‐sou in the Nippon baseball leagues

There is a well‐established long‐term trend towards increased competitive balance in US major‐league baseball. Kyou‐sou (competing) in the Nippon leagues has been on a similar upward trend. Nippon baseball, however, has not undergone the substantive institutional changes that mark the major leagues. After accounting for some of the factors that might explain this upward trend and eliminating some other plausible explanations, it is concluded that the greater competitive balance that currently exists may be the outgrowth of management policies that work to the benefit of fans as well as owners.     

Innis Lecture: Explorations in medium‐run macroeconomics

Abstract.  Medium‐run macroeconomics refers to aggregate economic phenomena that manifest over periods of 10 to 25 years. This area of research has emerged over the last decade as a new and distinct field of enquiry. In this paper, I overview a set of personal attempts aimed at understanding certain medium‐run phenomena such as: changes in the wage structure, changes in the world distribution of income‐per‐capita, and changes in growth patterns across OECD countries. The goal of the paper is to extract general lessons from these experiences. In particular, I will discuss why models of endogenous technological choice may be a good starting point for studying medium‐run phenomena. JEL classification: E00, O00     

开放式创新社区中用户参与创新对企业社区创新绩效的影响——社会网络视角

互联网技术能够促进开放式创新社区发展,但部分社区未给予企业相应回报。基于社会网络视角,构建开放式创新社区下社会网络、用户参与创新与企业创新绩效关系模型,探讨社区网络内部各维度间的联系及其对用户创新参与行为的影响,以及用户创新参与行为对企业社区创新绩效的影响,并以小米MIUI社区为例进行实证分析。结果表明,开放式创新社区中社会网络三维度相互影响,关系维度对用户创新参与行为有促进作用,认知维度对行为深度具有正向影响,对行为广度具有消极影响。此外,行为深度对企业社区创新绩效有促进作用,但行为广度与企业社区创新绩效无关。     

Church‐based Credit Cooperatives in Germany

Abstract The traditional business focus of credit co‐operatives is locally oriented and business success is explained by the efficient way to induce monitoring of borrowers. Church‐based credit co‐operatives in Germany are not that locally oriented but were extraordinary successful over the last decades. First, this analysis describes the special characteristics of church‐based institutions compared to other credit co‐operatives. This part is based on a historical backward glance, an analysis of annual reports and a survey on their business policy. Second, we discuss the special characteristics of church‐based credit co‐operatives to explain the business success in a broader context and to understand the perspectives of credit co‐operative banking beyond the local orientation.