When considering contributions to electoral campaigns in the U.S., the data reveals that total contributions within industries tend to vary signifi?cantly over time. To explain this evidence, we present a model in which interest groups fi?nance politicians that require funding for campaign...

The OGARCH specification is the leading model for a class of multivariate GARCH (MGARCH)specifications that are based on linear combinations of univariate GARCH specifications. Most MGARCH models in this class adopt a spectral decomposition of the covariance matrix, allowing for...

This paper characterizes the optimal tax and expenditure policies in economies where households’ unobservable gross earnings depend on exogenous (or inherited) capabilities and input investments. In a two-class economy, optimal redistribution relies on non-linear income taxation and input...

In this paper we investigate how tightening fiscal constraints (e.g., through intergovernmental transfer cuts) can lead local governments to postpone investments’ payments. We first provide a simple model showing how local governments can use arrears to relax their short-run financial...

Over the past thirty years, health expenditure has grown at a faster rate than the economy in almost every OECD country. The main drivers of public health spending are income growth, insurance coverage, demographics, and, above all, technological change. According to the projections of the major...

This paper studies the benefit coming from bundling two sequential activities in a context of Public Private Partnerships (PPPs). Differently from previous literature, I introduce a source of asymmetric information in the form of an externality parameter linking the building stage with...

We study contributions and punishment in a linear public goods game, where group members differ in the sources of their endowments. We compare homogenous groups in which subjects are exogenously assigned to the same endowments with heterogeneous groups in which half of the group members invest...

The realized volatility of financial returns is characterized by persistence and occurrence of unpredictable large increments. To capture those features, we introduce the Multiplicative Error Model with jumps (MEM-J). When a jump component is included in the multiplicative specification, the...

This paper investigates the interaction between uncertainty and monetary policy by estimating a non-linear VAR with US post-WWII data. The uncertainty indicator is treated both as an endogenous variable in the VAR and as the transition indicator discriminating "high" vs. "low" uncertainty...