Barriers to network-specific investment

We examine incentives for network-specific investment and consider the implications for network governance. We model a two-sided market in which participants making payments over a network platform can invest in a technology that reduces the marginal cost of using the platform. A network effect results in multiple equilibria—either all agents invest and use of the platform is high or no agents invest and use of the platform is low. The high-use equilibrium can be implemented if commitment is feasible. When the platform cannot commit to usage fees, investment in the platform-specific technology will be held up, thus implementing the low-investment equilibrium. As a result, governance structures necessary to achieve commitment will be preferred to those necessary merely to achieve coordination. For example, mutual ownership by users of a network platform may emerge where users face risk of ex post renegotiation. Such a governance structure will also be sufficient to avoid low investment attributable to the network effect.     

Correction note for ��The large-maturity smile for the Heston model��

The papers (Forde and Jacquier in Finance Stoch. 15:755?C780, 2011; Forde et al. in Finance Stoch. 15:781?C784, 2011) study large-time behaviour of the price process in the Heston model. This note corrects typos in Forde and Jacquier (Finance Stoch. 15:755?C780, 2011), Forde et al. (Finance Stoch. 15:781?C784, 2011) and clarifies the proof of Forde et al. (Finance Stoch. 15:781?C784, 2011, Proposition 2.3).     

A Stock Flow Consistent Analysis of a Schumpeterian Innovation Economy

Schumpeter argued that boom and bust cycles are inherent to the rise of innovation and constitute an unavoidable consequence of the way the capitalist system reacts to the emergence of a wave of innovations. This contribution aims to describe Schumpeterian economic development in a ‘monetary theory of production’ framework, emphasizing the crucial role played by credit creation, conceived as ‘the monetary complement’ of innovation. By adopting a stock flow consistent analytical approach, we analyze both the structural change process triggered in the real economy by the emergence of innovation, and the monetary dynamics arising during the various stages of the development process.     

How does Internationalisation affect the productivity of R&D activities in large innovative firms? A conditional nonparametric investigation

Quality & Quantity - This work explores the relationship between multinational R&D and innovation productivity among top corporate knowledge and R&D producers by adopting a...     

Comovements in the real activity of developed and emerging economies: A test of global versus specific international factors

Although globalization has shaped the world economy in recent decades, emerging economies have experienced impressive growth compared to developed economies, suggesting specific comovements within developed and emerging business cycles. Using observed developed and emerging real economy activity variables, we investigate whether the latter assertion can be supported by observed data. Based on a two-level factor model, we assume these activity variables can be decomposed into global components, emerging or developed common components, and idiosyncratic national shocks. We propose a statistical test for the null hypothesis of a one-level specification, where it is irrelevant to distinguish between emerging and developed latent factors against the two-level alternative. This paper provides a theoretical justification and Monte Carlo simulations that document the testing procedure. An application of the test to various data sets of developed and emerging countries leads to strong statistical evidence of specific comovements within these two groups.     

A dynamic theory of the declining aggregated labor income share: Intangible capital vs. tangible capital

Reports of the literature documenting the declining labor share of income have increased greatly in the past few years, which is opposed to one of the famous “Kaldor's stylized facts” of growth. The declining labor income share has been observed since the 1980s in a number of countries, and especially in the United States. Recent studies have revealed the following five major driving forces of the declining labor share: (i) supercycles and boom-busts, (ii) rising and faster depreciation, (iii) superstar effects and consolidation, (iv) capital substitution and automation, and (v) globalization and labor bargaining power. We set up a two-sector optimal growth model with the R&D intermediate sectors producing intangible capital. By integrating driving factors (ii) through (iv) above into the model, we demonstrate the long-run decline of the aggregated labor income share.     

Pathwise moderate deviations for option pricing

We provide a unifying treatment of pathwise moderate deviations for models commonly used in financial applications, and for related integrated functionals. Suitable scaling enables us to transfer these results into small‐time, large‐time, and tail asymptotics for diffusions, as well as for option prices and realized variances. In passing, we highlight some intuitive relationships between moderate deviations rate functions and their large deviations counterparts; these turn out to be useful for numerical purposes, as large deviations rate functions are often difficult to compute.     

Product quality and firm heterogeneity in international trade

This paper quantifies the separate contributions of product quality and technical efficiency in explaining variation in export outcomes across US manufacturing plants. Unlike previous studies that rely on unit values, I estimate idiosyncratic demand from price and quantity information. I find substantial across‐plant heterogeneity in demand, and consistent with the quality interpretation, demand is positively correlated with advertising expenditures, wage rates and material costs. I use this variation to explain across‐plant heterogeneity in export outcomes. The results show that, in addition to productivity, idiosyncratic demand is an important determinant of selection into exporting and the levels of foreign sales.     

Large Deviations for the Extended Heston Model: The Large-Time Case

We study here the large-time behaviour of all continuous affine stochastic volatility models [in the sense of Keller-Ressel (Math Finan 21(1):73–98, 2011)] and deduce a closed-form formula for the large-maturity implied volatility smile. We concentrate on (rescaled) strikes around the money, which are the most common in practice, and extend the results in Forde and Jacquier (Finan Stoch 15(4):755–780, 2011) and Gatheral and Jacquier (Quant Finan 11(8):1129–1132, 2011).     

Access to financing,rents, and organization of the firm

This paper provides a theory for the choice of an organizational structure by the headquarters of a unitary structure concerned about overload. The headquarters can avoid overload by delegating operational decisions to divisions, i.e., moving the firm to a multidivisional structure. We show that, under moral hazard, these divisions receive rents for incentive purposes, and that the multidivisional structure is able to invest more. Thus, there is a trade-off between increasing investment and paying rents. We also show that this trade-off applies to situations where firms consider engaging in acquisitions and joint ventures, or where entrepreneurs consider resorting to venture capitalists.