Reopening the convergence debate: A new look at cross-country growth empirics

There are two sources of inconsistency in existing cross-country empirical work on growth: correlated individual effects and endogenous explanatory variables. We estimate a variety of cross-country growth regressions using a generalized method of moments estimator that eliminates both problems. In one application, we find that per capita incomes converge to their steady-state levels at a rate of approximately 10 percent per year. This result stands in sharp contrast to the current consensus, which places the convergence rate at 2 percent. We discuss the theoretical implications of this finding. In another application, we perform a test of the Solow model. Again, contrary to prior reults, we reject both the standard and the augmented version of the model.     

Regulation of international roaming in the European Union—Lessons learned

This paper analyzes the evolution of prices and competition in intra-EU international roaming markets. It addresses three main research questions: (i) to what extent have market forces by themselves brought competition to retail roaming markets? (ii) Has the evolution of market dynamics in wholesale roaming improved competition? (iii) Is wholesale regulation sufficient to lead to a reduction in retail roaming prices? Data show that there has been little price-based competition both at wholesale and retail levels, despite prices being well above costs and the significant margins allowed by regulation. Available data from the period preceding the entry into force of the first EU roaming regulation also point to the same conclusion. Lack of competitive pressure in retail roaming markets and inelastic demand give little incentives for retail roaming service providers to lower prices. Wholesale international roaming markets have complex competition dynamics. They are characterized by the reciprocity of wholesale roaming agreements and traffic internalization inside transnational groups. These circumstances limit price competition at the wholesale level. The traditional regulatory approach applied to electronic communication markets has been primarily focused on wholesale regulation. However, empirical evidence shows that even if wholesale charges are reduced, retail roaming markets continue to operate at very high retail margins (for example, more than 200% retail mark-up over wholesale charges for data roaming services and incoming calls). This proves that in international roaming markets wholesale charge reductions are not necessarily passed on to retail prices. It can thus be inferred that wholesale price regulation alone is in most cases not sufficient to ensure that benefits are passed through to end users.     

Profitable growth: Avoiding the ‘growth fetish’ in emerging markets

Growth management is a challenging but critical corporate strategy facing the fast economic growth in emerging markets. An overemphasis on growth would lead to the growth fetish, where growth is unqualified and seen as an end in itself. By examining the performance of 105,260 firms in key sectors of Brazil, Russia, India, and China (BRIC) from 2002 to 2011, this study presents quantitative evidence that supports a profit-oriented strategy as a more effective path to sustained profitable growth in emerging markets. To further support this argument, this study also provides qualitative evidence of a group of 70 sustained high-performing firms that are superior to their peers (the top 500 private companies in each of the BRIC countries) in terms of profit, growth, market share, and efficiency over a 10-year period. The study shows that sustained profitable growth requires qualified sales growth (i.e., organic growth), competence-based and competence-enhancing growth, and continuous product diversification.     

Reasoning under uncertainty and multi-criteria decision making in data privacy

By means of an integration of decision theory and probabilistic models, we explore and develop methods for improving data privacy. Our work encompasses disclosure control tools in statistical databases and privacy requirements prioritization; in particular we propose a Bayesian approach for the on-line auditing in Statistical Databases and Pairwise Comparison Matrices for privacy requirements prioritization. The first approach is illustrated by means of examples in the context of statistical analysis on the census and medical data, where no salary (resp. no medical information), that could be related to a specific employee (resp. patient), must be released; the second approach is illustrated by means of examples, such as an e-voting system and an e-banking service that have to satisfy privacy requirements in addition to functional and security ones. Several fields in the social sciences, economics and engineering will benefit from the advances in this research area: e-voting, e-government, e-commerce, e-banking, e-health, cloud computing and risk management are a few examples of applications for the findings of this research.     

Personal Income Taxes in Developing Countries

Comparative work on income taxes in developing countries hascommonly looked at average tax rates. These rates are oftenconstructed by dividing revenue collections by some measureof private or personal income. Recent controversies have, however,focused on the incentive effects of marginal tax rates. Thisarticle develops and applies a simple methodology to comparemarginal official tax rates across a sample of fifty developingcountries. As would be expected given differences in fiscalcapacity, the poorest and the lower-middle-income countriesimpose relatively low marginal rates, and the rates for theupper-middle-income and developed countries are higher. Conversely,several low-and lower-middle-income countries' tax thresholdsstart at income levels which are low relative to their meanincome when compared with those of developed countries. Theresults warn against trying to derive information on the disincentiveeffect of a country's tax schedule from the highest marginalrate; our data show that this is not an accurate indicator ofoverall disincentive effects.     

Groupware and teamwork in R&D: limits to learning and innovation

In recent years the re-engineering of R&D functions in large multinationals has often been accompanied by the emergence of groupware applications as strategic decision-making tools, while the organization of work has shifted towards various forms of teamworking. There is however, little empirical evidence on the conditions and processes through which groupware and teamworking practices can be efficiently linked. This paper examines the experience in groupware adoption by two large multinationals, Hoffmann la Roche and Unilever, in selected areas of new product development: the final New Drug Application phase for a new anti AIDS drug in Roche and the development along an 'innovation funnel' of new oral care products in Unilever. Despite the variety of tasks, organizations, missions and technology deployed, similar themes seem to emerge regarding how large organizations are able to 'host' the new groupware applications. Learning processes seem to play a key role in the final integration of the technology in the workflow. Still, what seems to emerge is that despite its critical role, learning is not a sufficiently valued competence, at least in the organizations examined. As a consequence, the innovations tend to drift, lead to unexpected outcomes and many opportunities for learning from (mistakes and) innovations are simply missed. Factors responsible for such a state of affairs seem to be the power of the hierarchical context into which groupware and teamwork are introduced; the continuous jolts to which such context must undergo because of radical shifts in management and R&D strategy; the dialectics between local and global changes.     

Sensemaking on the Shop Floor: Narratives of Knowledge in Organizations*

ABSTRACT This paper explores the role of narratives in organizational inquiry and knowledge work. Following the tenets of the phenomenological method, the paper digs into the ‘life world’ of organizations in order to capture the taken for granted stream of everyday routines, interaction, and events that constitute both individual and social practices. An empirical case study examines the narrative‐based processes of sensemaking and knowledge acquisition in the setting of a traditional pressing plant at Fiat Auto, Italy. The focus of analysis is on how a best performing team engages in the resolution of disruptive occurrences on the shop floor. Through the deconstruction of narratives underlying problem‐solving activities, the case identifies a distinctive mode of investigation conceptualized as ‘detective stories’. The detective's method highlights the interplay between time and narrative in shaping the interconnected processes of organizational knowledge creation, utilization, and institutionalization. More generally, the findings of the paper stress the importance of conjectural knowledge and common‐sensical wisdom in the everyday life of organizations.     

The multiplex structure of interbank networks

The interbank market has a natural multiplex network representation. We employ a unique database of supervisory reports on Italian banks to the Banca d’Italia that includes all bilateral exposures broken down by maturity and by the secured and unsecured nature of the contract. We find that layers have different topological properties and persistence over time. The presence of a link in a layer is not a good predictor of the presence of the same link in other layers. Maximum entropy models reveal different unexpected substructures, such as network motifs, in different layers. Using the total interbank network or focusing on a specific layer as representative of the other layers provides a poor representation of interlinkages in the interbank market and could lead to biased estimation of systemic risk.     

Internal versus external convertibility and emerging-market crises: lessons from Argentine history

Argentina’s money and banking system was hit hard by the Great Depression. Banks were awash with bad assets when gold convertibility was suspended in December 1929. We argue for an explanation of the crisis that focuses on the inside-outside money relationship in a system of fractional-reserve banking and gold-standard rules with a tension between internal and external convertibility. After financial fragility appeared in the 1914-1927 suspension, resumption in 1928 was probably unsustainable due to the problems of the financial system and a dynamic model illustrates the point well. When the state bank became insolvent, the currency board started bailing out the system using high-powered money. Thus, came about the demise of the currency board and the creation of a central bank in 1935. As one of its first substantive actions, the central bank engineered a bailout of the banking system at a massive social cost. The parallels with recent developing-country crises are remarkable and the implications for the institutional design of monetary and banking systems are considered.