On the location of knowledge-intensive entrepreneurship in developing countries: lessons from São Paulo,Brazil

This article empirically appraises the geographical distribution of knowledge-intensive entrepreneurship (KIE) in the settings of an emerging economy. We start from the typical agglomeration approach and then introduce a set of variables related to local market conditions, distance from the economic hub, and knowledge & innovation system to explain KIE location and density on the basis of city-level data in the State of São Paulo, Brazil. Findings indicate KIE concentration in and around a few urban areas, providing support to agglomeration economies concepts. There is strong evidence that the local presence of research-oriented universities, access to capital, and business concentration are correlated to KIE emergence and density. Results also indicate the moderating effect of agglomeration diseconomies mainly related to factors of rapid and anarchic expansion of urban centers and the consequences of extreme inequalities in income distribution. This challenges the usability of concepts of entrepreneurial ecosystems from advanced economies if not adapted to the realities of developing countries.     

The impact of public R&D subsidy on small firm productivity: evidence from Korean SMEs

This paper explores the effects of R&D promotion policy on SME performance. We use a large panel data set on public R&D subsidies to Korean manufacturing firms. We control for counterfactual outcomes employing the DID (difference in differences) estimation procedure as well as for the endogeneity of the R&D investment and the R&D subsidy using the 2-stage Tobit/Logit DPD (dynamic panel data) procedure. We find significant evidence for positive effects of the public R&D subsidy on both the R&D expenditure and the value added productivity of Korean manufacturing SMEs. The policy thus appears to have been successful in fostering technological advancement and in promoting economic growth.     

A New Econometric Model of Index Arbitrage

This paper introduces a new econometric model of the mispricing associated with (contemporaneous) differences between spot and futures prices. Like existing models, this model assumes that the level of arbitrage activity is positively related to the magnitude of absolute mispricing. However, unlike existing models, the new model assumes that a parameter governing a key feature of this relationship varies over time. Specifically, several versions of a smooth transition model of mispricing are introduced that each allow the shape of the transition function to be determined by a set of explanatory variables. Using high frequency data from the S&P 500 spot and futures market, the results show that the nature of the non‐linearity in mispricing corresponds to arbitrageur behaviour that varies (in a periodic fashion) over the trading day. This is evinced by the superior fit of the new model of mispricing, in comparison to the results based on existing econometric models of mispricing. Finally, the observed periodicity in arbitrageur behaviour indicates that arbitrageurs prefer to trade during certain periods within the trading day – a result that contradicts the findings obtained when using existing econometric models of mispricing.     

The Impact of Jumps in Volatility and Returns

This paper examines continuous‐time stochastic volatility models incorporating jumps in returns and volatility. We develop a likelihood‐based estimation strategy and provide estimates of parameters, spot volatility, jump times, and jump sizes using S&P 500 and Nasdaq 100 index returns. Estimates of jump times, jump sizes, and volatility are particularly useful for identifying the effects of these factors during periods of market stress, such as those in 1987, 1997, and 1998. Using formal and informal diagnostics, we find strong evidence for jumps in volatility and jumps in returns. Finally, we study how these factors and estimation risk impact option pricing.     

Knowledge‐intensive firms: the influence of the client on HR systems

HR systems play a critical role in growing knowledge‐intensive firms (KIFs) by facilitating the conversion of human capital into intellectual capital, which has market value. However, the choice of HR system is constrained by the relatively small number of clients they have in business‐to‐business relationships. This article seeks to understand how and why these client relationships affect the choice of HR practices in these firms. We address this issue by drawing on extensive empirical research currently under way in KIFs. Our research shows that HR practices can be influenced strongly by the client, both directly and indirectly. However, some KIFs will use their HR practices as a means of managing the relationships they have with their clients by shaping their boundaries with their clients and building organisational, professional and client identities. The varying client influence can be understood by examining the nature of the power relationship between the client and supplier, which is influenced by the uniqueness of the services provided. This has implications for our understanding of the factors affecting the exercise of a constrained choice of HR systems.     

Romancing Alpacas: A commentary

This essay, while endorsing Cathi McMullen's core thesis—that Alpaca collecting represents a new kind of rapturous, high-involvement consumption (wherein the consumer/producer distinction is challenged)—seeks to further evolve the explanatory account of this microculture. The drive behind Alpaca collecting may be located in specific trends embedded in both the modern and postmodern condition, such as the rejection of industrialized agriculture. Understanding of this remarkable phenomenon in terms of a striving for social connection is possible; the search for novelty; and the search for a nuanced, idiosyncratic expression of status within an expanding universe of consumer nonconformity.     

Value Gains on Flotation and IPO Underpricing

Abstract:  Utilising a unique dataset of 502 UK IPOs we undertake an empirical analysis of the relationship between underpricing and value gains on flotation. We find support for our hypothesis that IPO underpricing is related to the extent of anticipated value gains on the private to public transition. We analyse alternative driving mechanisms behind this relationship, and our results suggest that the underpricing of IPOs is driven by both underwriters and issuing company directors, each of whom derive net benefits over the longer term from underpricing at the IPO.     

Efficiency and incentive compatibility in differential information economies

Summary. We introduce several efficiency notions depending on what kind of expected utility is used (ex ante, interim, ex post) and on how agents share their private information, i.e., whether they redistribute their initial endowments based on their own private information, or common knowledge information, or pooled information. Moreover, we introduce several Bayesian incentive compatibility notions and identify several efficiency concepts which maintain (coalitional) Bayesian incentive compatibility. Received: March 25, 1996; revised September 5, 1996