Persistence and cyclical dependence in the monthly euribor rate

This paper analyses two well-known features of interest rates, namely their time dependence and their cyclical structure. Specifically, it focuses on the Euribor rate, using monthly data from January 1994 to May 2011. Two models are considered, one with fractional integration at the long run or zero frequency, and the other replacing the zero frequency with a cyclical one. The results indicate that the latter outperforms the former as well as other standard specifications. Future directions for research (such as nonlinearities, volatility behaviour, and multivariate models) are also discussed.     

Determinants of hierarchical structure in industrial firms: an empirical study

The paper investigates implications of different theoretical models for hierarchical structure. A sample of 6,578 firms in the Brazilian manufacturing industry is considered and explanatory factors pertaining to structural characteristics, network technology, technological innovations, managerial innovations and incentive mechanisms are investigated. Important joint effects are detected for all groups of variables in partial contrast with the related previous literature. Moreover, one detects significant joint effect of the newly considered group of incentive variables. The evidence in terms of individual effects is largely consistent with the predicted effects from the theoretical literature.     

Walking up the Down Escalator: Public Investment and Fiscal Stability

When growth-promoting spending is cut so much that the presentvalue of future government revenues falls by more than the immediateimprovement in the cash deficit, fiscal adjustment becomes likewalking up the down escalator. Although short-term cash flowsmatter, too tight a focus on them encourages governments toinvest too little. Cash-flow targets also encourage governmentsto shift investment spending off budget by seeking private investmentin public projects, irrespective of its real fiscal or economicbenefits. To deal with this problem, some observers have suggestedexcluding certain investments (such as those undertaken by publicenterprises deemed commercial or financed by multilaterals)from cash-flow targets. These stopgap remedies may help protectsome investments, but they do not provide a satisfactory solutionto the underlying problem. Governments can more effectivelyreduce the biases created by the focus on short-term cash flowsby developing indicators of the long-term fiscal effects oftheir decisions, including accounting and economic measuresof net worth, and, where appropriate, including such measuresin fiscal targets or even fiscal rules. JEL codes: O23, E62, H60, H54     

A conceptual framework for public-private interplay in the telecommunications sector

Public activity in the telecommunications industry has experienced important transformations in the last decade: “reinvolvement” in infrastructure deployment, “innovative” boosting measures, and decentralisation of some decisions. Conceptually, even more important than the measures themselves is the fact that private agents often participate in their realisation and execution. This paper reviews how justifications for public action that would apply to any economic activity area have modelled the public-private relationship in the telecommunications sector. Subsequently, it focuses on the analysis of the new spaces for public-private collaboration that are currently opening up.