International Knowledge Diffusion and Home‐bias Effect: Do USPTO and EPO Patent Citations Tell the Same Story?*

This paper estimates the international diffusion of technical knowledge using patent citations. We control for self‐citations and for procedural differences between patent offices using equivalent patents. We find that (1) there are clear biases in patent examination processes that generate citations in the two offices; (2) at the EPO there is a strong localization effect at the country level, and the size is comparable to that found at the USPTO; (3) technological fields have different properties of diffusion in the two patent offices that do not depend on a patent office bias; (4) using EPO data, the US is not the leading country in terms of citations made and received, as occurs at the USPTO.     

The role of time value in convertible bond call policy

Since the seminal work of Ingersoll (1977b) the optimal time in which a firm should redeem its outstanding convertible bonds has received large attention by the financial literature. Several studies have put forward a number of possible costs and benefits for a firm if it interrupts the life of its convertible bonds prior to their contractual maturity. However, in this paper we argue that the managerial decision to call back a convertible bond is mainly driven by a fundamental variable almost neglected up until now: the time value extraction from bondholders’ conversion option. Accordingly, we propose a measure for the effective convenience of calling—which we define as net time value advantage—and we show, using a survival analysis, that it is more effective than previously proposed measures in explaining the firms’ observed call policy.     

Regional convergence in Italy, 1891–2001: testing human and social capital

The article aims to present and discuss estimates of levels of human and social capital in Italy??s regions over the long term, i.e., roughly from the second half of the nineteenth century up to the present day. The results are linked to newly available evidence for regional value added in order to begin to form an explanatory hypothesis of long-term regional inequality in Italy: convergence in value added per capita is tested in light of the neoclassical exogenous growth approach, which incorporates human capital and social capital as conditioning variables into a long-term production function. In contrast with conventional wisdom (e.g. Putnam 1993), we find that social capital was not a significant predictor of economic growth in post-Unification Italy: It grew in importance only in the last decades. Conversely, human capital was more important in the first half of the twentieth century. Results suggest that there was not one single conditioning variable over the long run, thus supporting the view that, in different periods, conditioning variables can be determined by technological regimes.     

The externalisation of R&D activities and the growing market of product development services

Several authors in recent years have discussed the observed trend towards the externalisation of (part of) a firm's R&D activities. As a consequence, several companies have been created that provide innovators with technical and scientific services such as R&D contracts, laboratory testing services, technology consulting, industrial design, engineering.
The paper is based upon an empirical study which consists of (i) an extensive analysis, in which information has been collected (for about two hundred companies) on size, location and type of services offered; (ii) an intensive analysis, in which one case is studied in depth of a company providing product development services. Some conclusions have been drawn regarding the characteristics of the market of product development services and the management and organisation of companies operating in that market.     

帮助贫困人口

在贫困国家，用于教育与卫生保健的支出能促进人力资本的发展，并帮助它们实现千年发展目标，不过政府必须敢于承担责任。     

Corporate Culture in the Nonprofit Sector: A Comparison of Fringe Benefits with the For-profit Sector

One explanation that may be given for why nonprofit organizations pay lower wages than do other organizations is that nonprofits are more pleasant places to work. Indeed, some authors have proposed that nonprofit organizations should make an effort to promote a working environment that reflects the beliefs of the organization. This paper uses several proxies for whether an organization is a pleasant place in which to work, and tests for whether nonprofits are more likely to offer such pleasant working conditions. Analysis shows that nonprofits are not more likely to offer these conditions in many instances.     

Nominal debt as a burden on monetary policy

We characterize the optimal sequential choice of monetary policy in economies with either nominal or indexed debt. In a model where nominal debt is the only source of time inconsistency, the Markov-perfect equilibrium policy implies the progressive depletion of the outstanding stock of debt, until the time inconsistency disappears. There is a resulting welfare loss if debt is nominal rather than indexed. We also analyze the case where monetary policy is time inconsistent even when debt is indexed. In this case, with nominal debt, the sequential optimal policy converges to a time-consistent steady state with positive—or negative—debt, depending on the value of the intertemporal elasticity of substitution. Welfare can be higher if debt is nominal rather than indexed and the level of debt is not too high.     

Conversation with secrets

We analyze the sustainability of a conversation when one agent might be endowed with a piece of private information that affects the payoff distribution to its benefit. Such a secret can compromise the sustainability of conversation. Even without an obligation, the secret holder will disclose its secret if it prevents preemptive termination of the conversation. The nonsecret holder lacks this possibility and stops the conversation. Competition and limited effectiveness of the conversation amplify this result of early disclosure and render the conversation process less sustainable. We discuss policy and managerial implications for industry standard development and joint ventures.     

Diverse twins: analysing China’s impact on Italian and German exports using a multilevel quantile regressions approach

Germany and Italy are the largest manufacturing producers in Europe and export over 70% of their products to OECD countries. While they share many characteristics, they are also diverse in term of specialization and destination markets. Italy has a productive structure largely based on labour intensive sectors, while Germany is mainly specialized in high-tech goods. We study whether these characteristics make the two countries vulnerable in different ways to the competitive pressure by emerging economies, especially China, which experienced the strongest increase in export market share during the last decades. We discuss the impact of China on the export performance of Italy and Germany on OECD markets. Using data for the period 1995–2009, we implement a novel model to account for two important data characteristics: their hierarchical hidden structure (captured by a multilevel model) and the heterogeneity of the export shares (captured by a quantile approach). Results show that Chinese competition on Italy’s and Germany’s market shares differ by sectors, but, on average, Italy is not more vulnerable than Germany. These results are relevant for policy implications and for an ex-post analysis of the ‘best response’ to the Chinese competition.