Time series anomaly detection plays a critical role in various applications, from finance to industrial monitoring. Effective models need to capture both the inherent characteristics of time series data and the unique patterns associated with anomalies. While traditional forecasting-based and...

With the advent of Big Data, managing large-scale portfolios of thousands of securities is one of the most challenging tasks in the asset management industry. This study uses an evolutionary multi objective technique to solve large-scale portfolio optimisation problems with both long-term listed...

Some studies argue that the Fed reacts to financial market developments. Using data covering the period 1985:Q1 - 2008:Q4 and employing an augmented Taylor rule specification, we re-examine that conjecture. We find that evidence in favour of such a reaction is largely driven by the Fed’s...

We develop methods for Bayesian model averaging (BMA) or selection (BMS) in Panel Vector Autoregressions (PVARs). Our approach allows us to select between or average over all possible combinations of restricted PVARs where the restrictions involve interdependencies between and heterogeneities...

In a bilateral oligopoly, with large traders, represented as atoms, and small traders, represented by an atomless part, when is there a non-empty intersection between the sets of Walras and Cournot-Nash allocations? Using a two commodity version of the Shapley window model, we show that a...

We study a business cycle model in which a benevolent …scal authority must determine the optimal provision of government services, while lacking credibility, lump-sum taxes, and the ability to bond fi…nance de…ficits. Households and the fi…scal authority have risk sensitive pref- erences. We...

Most of the literature estimating DSGE models for monetary policy analysis assume that policy follows a simple rule. In this paper we allow policy to be described by various forms of optimal policy - commitment, discretion and quasi-commitment. We find that, even after allowing for Markov...

Using a large panel of unquoted euro-area firms over the period 2003-11, this paper examines the impact of financial pressure on firms’ employment. The analysis finds evidence that financial pressure negatively affects firms’ employment decisions. This effect is stronger during the...

This paper analyses optimal income taxes over the business cycle under a balanced-budget restriction, for low, middle and high income agents. A model incorporating capital-skill complementarity in pro- duction and differential access to capital and labour markets is de- veloped to capture the...