The Effects of Consumption Variability on Saving: Evidence from a Panel of Muscovite Households**

Due to the high uncertainty characterizing them, transition economies provide an extraordinary opportunity to test the precautionary saving hypothesis. This paper represents an attempt to exploit this opportunity. We use a panel of 2,346 Muscovite households, over the 12 months of 1996, to construct two time‐varying measures of consumption growth variability, which we use as proxies for households’ perceived uncertainty. We then regress household saving on these uncertainty variables using a GMM‐system estimator. We find that both uncertainty measures generally have a positive and statistically significant effect on saving. This result, which is robust to the use of different measures of saving, supports the precautionary saving hypothesis.     

Knowledge,innovation, and control towards accountability: a comparative case study

This paper deepens the countervailing relationship between control and innovation in highly innovative networks. It adopts a middle range theory perspective [Broadbent and Laughlin, 2013. Accounting Control and Controlling Accounting: Interdisciplinary and Critical Perspectives. 1st ed. Bingley: Emerald Group] integrated with the quintuple helix model (Carayannis and Campbell, 2010. “Triple Helix, Quadruple Helix and Quintuple Helix and How Do Knowledge, Innovation and the Environment Relate To Each Other?.” International Journal of Social Ecology and Sustainable Development 1 (1): 41–69] to explore how control and innovation interact and shape each other in the contexts of high complexity and intensive knowledge creation, towards the satisfaction of accountability demands by stakeholders. The research relies upon two case studies and reveals what are the factors positively shaping the interaction between innovation and control towards greater accountability. We document that successful changes are facilitated by the implementation of adequate and innovative informal control devices favouring collaborative relationships, reinforcing innovation and shared knowledge and capabilities within the organisation. The findings are relevant to all complex settings involved in multifaceted processes of producing knowledge and innovation.     

Approximating exact expected utility via portfolio efficient frontiers

Expected utility theory is nowadays accepted as the standard for rational choice among risky assets. However, as Harry Markowitz recently pointed out, the problem of how the maximum expected utility along the risk–return portfolio efficient frontiers approximates the exact maximum expected utility is still open. This paper shows that some popular risk–return models are actually able to approximate expected utility maximization with respect to classical and new distance measures. It also analyzes the ability of the whole risk–return efficient frontiers to approximate the exact one. Our empirical analysis is based on recent publicly available real-world data sets.     

Recenti sviluppi teorici del «Capital Asset Pricing Model»

Il presente studio prende in esame il CAPM e ne illustra i principali approcci teorici più recenti; soprattutto in questi ultimi anni, infatti, l'argomento ha attirato l'attenzione degli studiosi in campo finanziario e si presenta ancora molto interessante per i possibili sviluppi futuri. Senza esaurire l'argomento, che comporterebbe una trattazione molto ampia e una molteplicità di modelli a questo collegati, è parso utile ripercorrere l'iter logico e cronologico di questa teoria al fine di osservare come da un modello relativamente semplice sia stata a poco a poco enucleata tutta una serie di importanti problemi collaterali.

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This paper reviews the theoretical literature on the CAPM, considering the most important and recent approaches.Actually this model has been studied and developed very much in the financial field and further applications can be obtained in the future. The logical and historical development of the CAPM has been here the perspective to observe this theory, without exhausting the literature in this field, so the main aim is to present the relevant importance of the actual theory and some important problems which come from that.

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Lavoro svolto nell'ambito della ricerca CNR n. 78.00551.10.     

An Empirical Analysis of Competition in Brand Differentiated Oligopoly

The paper studies the behaviour of four oligopolistic firms in the Italian coffee market. We study whether their behaviour is better represented by Bertrand behaviour or by collusive pricing. We also investigate the role of advertising in product differentiation.     

FINANCIAL CONSTRAINTS, GLOBAL ENGAGEMENT, AND FIRM SURVIVAL IN THE UNITED KINGDOM: EVIDENCE FROM MICRO DATA

Financial constraints have been found to play an important role on various aspects of firm behavior. Yet, their effects on firm survival have been largely neglected. We use a panel of 61,496 UK firms over the period 1997–2002 to study the effects of financial variables on firms' failure probabilities, differentiating firms into globally engaged and purely domestic. Estimating a wide range of specifications, we find that lower collateral and higher leverage result in higher failure probabilities for purely domestic than for globally engaged firms. This can be seen as evidence that global engagement shields firms from financial constraints.     

Underpricing of venture backed IPOs: a meta-analysis approach

ABSTRACT

Listing firms are subject to underpricing mainly because of asymmetries of information, but IPOs backed by a venture capitalist are generally found to be subject to less underpricing. Although this condition is commonly verified by the empirical evidence, a consistent number of studies finds contrasting results. This paper aims to answer to the question: do venture capitalists effectively reduce underpricing at IPO? Evidence provides a negative answer, with venture-backed IPOs having higher underpricing especially in US markets. Meta-regression results confirm the different effect of VC between US and European IPOs. Results overall suggest that other explanations on underpricing might hold in US markets.     

Storable votes

Motivated by the need for more flexible decision-making mechanisms in the European Union, the paper proposes a simple but novel voting scheme for binary decisions taken by committees that meet regularly over time. At each meeting, committee members are allowed to store their vote for future use; the decision is then taken according to the majority of votes cast. The possibility of shifting votes intertemporally allows agents to concentrate their votes when preferences are more intense, and although the scheme will not achieve full efficiency, storable votes typically lead to ex ante welfare gains over non-storable votes. Welfare gains can be proven rigorously in the case of 2 voters. With more voters, counterexamples can be found, but the analysis suggests that the welfare improvements should continue to hold if one of the following conditions is satisfied: (i) the number of voters is above a minimum threshold; (ii) preferences are not too polarized; (iii) the horizon is long enough.     

Do universities knowledge spillovers impact on new firm’s growth? Empirical evidence from UK

The paper explores the effect of scientific institutions on firm’s growth, coupling regional science and entrepreneurship approaches. We focus on the role of universities, largely considered in the literature as the main source of knowledge spillovers. To this purpose, we centre our attention on UK public companies on the Alternative Investment Market (AIM), a market dedicated to young and growing companies in both science and non-science based industries. In the paper we investigate the growth determinants of 231 listed firms which have gone public during the period going from 1995 to 2006. To our purposes, in the empirical analysis we use the Gibrat’s Law of Proportionate Effects model. The results supports the hypothesis that, controlling for firm’s idiosyncratic factors and external forces, both universities knowledge input and output are important determinants of the growth of entrepreneurial firms listed on the AIM.

Close the loop: Evidence on the implementation of the circular economy from the Italian fashion industry

Fashion is widely considered as one of the most polluting and destructive industries to the environment and is a resource-intensive industry in which opportunities to reduce environmental impacts abound. By relying on an exploratory approach, this paper features an investigation into the circular economy (CE) practices of four purposefully selected Italian fashion companies. The study endorses the overlooked perspective of the product lifecycle (vis-à-vis the business model perspective), consistent with the key principles of the CE, to provide a comprehensive picture of CE practices implemented. This study engages with the current debate on the relationship between the concepts of sustainability and CE, supporting the idea that there is a beneficial relation between the two. The analysis shows the emergence of categories of CE-related practices as well as CE implementation challenges. The study also provides granular insights into the nature of these challenges that hinder the implementation of CE and demonstrates how they can be turned into sources of competitive advantage. Drawing on this emblematic evidence, we develop a set of theoretical and managerial implications.