State prices,liquidity, and default

We show, in a monetary exchange economy, that asset prices in a complete markets general equilibrium are a function of the supply of liquidity by the Central Bank, through its effect on default and interest rates. Two agents trade goods and nominal assets to smooth consumption across periods and future states, in the presence of cash-in-advance financing costs that have effects on real allocations. We show that higher spot interest rates reduce trade and as a result increase state prices. Hence, states of nature with higher interest rates are also states of nature with higher risk-neutral probabilities. This result, which cannot be found in a Lucas-type representative agent model, implies that the yield curve is upward sloping in equilibrium, even when short-term interest rates are fairly stable and the variance of the (macroeconomic) stochastic discount factor is 0. The risk-premium in the term structure is, therefore, a monetary-cost risk premium.     

Configurable e-negotiation systems for large scale and transparent decision making

Participatory democracy is one of several conceptions of democracy which strives to create opportunities for all members of a group to contribute to the decision making process. Recent developments in information technologies in general and Internet technologies in particular are affecting the existing democratic mechanisms, hence enabling citizens and organizations to participate widely, efficiently and transparently in the decision making process and, most importantly, to arrive at better decisions faster, through negotiation. E-negotiation systems rely on such technologies to implement protocols ranging from motion raising and voting to auctions, and to make them available on the web for general use. E-negotiation systems can be used for political and societal decision making as well as business dealings within e-government and B2B settings. In order for these systems to fulfill their promise of bringing decision making opportunities to all, we need a structured approach and a configurable framework for designing, implementing and deploying them. The resulting systems should be web-based, easy to use, affordable, traceable, reliable, secure, flexible, efficient, and open for integration with other systems. This paper starts by examining leading research initiatives to devise such a framework and discussing the motivations behind them. We then introduce several design requirements derived from the expectations of e-negotiation systems providers and users. We argue that meeting these requirements fosters a more democratic and efficient decision making process. We also present our approach and vision of a configurable framework for designing, implementing and deploying e-negotiation systems.     

Quality perceptions under evolving information conditions: Implications for diet,health and consumer satisfaction

Consumers’ perception of, and satisfaction with, fruit quality is an important issue for both public policy and commercial reasons. However, because of information problems, consumers cannot easily choose fruits of a quality most likely to satisfy their preferences and health needs. The research reported here employed an experimental auction method to test perceptions of fruit quality by evaluating the willingness to pay (WTP) of consumers for five different varieties of soft citrus under three different information conditions: visual inspection of the fruit before peeling; visual inspection after peeling; and after consumption. Significant differences were found in valuations of the different varieties as consumers gained information. Conclusions are drawn about the value of the methodology and the results themselves, and implications are inferred for policy and for growers and traders. It is argued that product information should be oriented not just towards nutritional education but also towards increasing the pleasure of healthy eating.     

Revealed value of volunteering: A volunteer centre network

This article deals with the revealed value of volunteering. The revealed value approach is one way to determine the value of non‐market goods or services. Most studies focused on the value of volunteering have built their research on the presumption that there is no way to reveal the value of volunteering, and therefore proxies must be used. This research uses a plausibility probe case study to explore and identify revealed information about the value of volunteering. The research was conducted using data over a seven‐year period (2012–18) from ADRA, a large volunteer centre network in the Czech Republic that has 14 volunteer centres coordinating more than 2,500 volunteers in about 50 cities. I used the data about all the public funding of all the centres in this network between 2012 and 2018 in order to calculate the revealed value of volunteering from the perspective of various governmental institutions. I calculated the total value of volunteering, including financial grants, donations, and the value of volunteer hours. Interestingly, all three values were found within or slightly around the interval estimate of the value of volunteering.     

Accreditation in regulated markets

We study firms that supply a vertically and horizontally differentiated service in a market with regulated prices. The incentives for seeking accreditation are more significant for sellers of below-average quality services relative to sellers of above-average quality services. For homogenous firms, profits are lower in equilibria where both firms seek accreditation relatively to equilibria where neither does. Private and social accreditation incentives typically differ. The welfare optimal reimbursement rate is independent of a firm's actual accreditation decision but dependent on the accreditation decision of the rival. Hence, policies that give extra financial support to firms that accredit are likely to promote inefficiency.     

Hierarchical adaptive sparse grids and quasi-Monte Carlo for option pricing under the rough Bergomi model

The rough Bergomi (rBergomi) model, introduced recently in Bayer et al. [Pricing under rough volatility. Quant. Finance, 2016, 16(6), 887–904], is a promising rough volatility model in quantitative finance. It is a parsimonious model depending on only three parameters, and yet remarkably fits empirical implied volatility surfaces. In the absence of analytical European option pricing methods for the model, and due to the non-Markovian nature of the fractional driver, the prevalent option is to use the Monte Carlo (MC) simulation for pricing. Despite recent advances in the MC method in this context, pricing under the rBergomi model is still a time-consuming task. To overcome this issue, we have designed a novel, hierarchical approach, based on: (i) adaptive sparse grids quadrature (ASGQ), and (ii) quasi-Monte Carlo (QMC). Both techniques are coupled with a Brownian bridge construction and a Richardson extrapolation on the weak error. By uncovering the available regularity, our hierarchical methods demonstrate substantial computational gains with respect to the standard MC method. They reach a sufficiently small relative error tolerance in the price estimates across different parameter constellations, even for very small values of the Hurst parameter. Our work opens a new research direction in this field, i.e. to investigate the performance of methods other than Monte Carlo for pricing and calibrating under the rBergomi model.     

Bilateral trade effects of fiscal devaluation: Evidence from OECD countries

This paper empirically examines the effects of a fiscal devaluation on bilateral trade. To this end, employers’ social contribution (ESC) and value-added tax (VAT), which stand as the factors that represent typical fiscal devaluation, are embodied within the framework of a gravity model. Fixed effects vector decomposition (FEVD) technique is applied to the empirical models specified within this framework, employing panel data from 22 OECD countries over the 1980–2014 periods. The findings show that the effectiveness of the fiscal devaluation policy seems to alter with respect to how ESC and VAT are measured. Considering the fiscal devaluation policy implemented unilaterally, the policy turns out to be effective in nine countries in the sample.     

The liability of mimicry: Implementing “global human resource management standards” in United States and Indian subsidiaries of a South Korean multinational enterprise

There is increasing evidence that multinational enterprises (MNEs) from less dominant economies tend to mimic and disseminate human resource management (HRM) practices sourced from a dominant economy, usually the United States, to overcome their “liabilities of origin.” However, our understanding of the specific challenges involved in the implementation of such practices by firms across different national and subsidiary contexts remains limited. Drawing on evidence from a case study of a South Korean MNE, we examine the extent to which, and ways in which, global HRM policies mimicking U.S. practices are implemented across its sales, manufacturing, and research and development subsidiaries in the United States and India. We find discernible differences in the implementation of the global policies both between the two host country sites and across the three function-specific subsidiaries in each country, identifying a range of national and subsidiary-specific factors that inform these variable implementation outcomes. In addition to legitimacy challenges related to the source, appropriateness, and process of transfer, we note a unique form of legitimacy challenge—“the liability of mimicry”—whereby local actors can challenge head office policies on the basis of a claim to superior expertise in the dominant practices, as a particular concern of MNEs from emerging economies.     

Understanding before implementing: the context of Lean in public healthcare organizations

A three-year study of Lean implementation in public healthcare organizations in Québec identified poor understanding of the organizational context as a contributing factor to unsustainable Lean implementation. This paper presents a holistic perspective of the unique context of public healthcare organizations and discusses its implications with regards to Lean implementation.