Optimal execution with non-linear transient market impact

We study the problem of the optimal execution of a large trade in the propagator model with non-linear transient impact. From brute force numerical optimization of the cost functional, we find that the optimal solution for a buy programme typically features a few short intense buying periods separated by long periods of weak selling. Indeed, in some cases, we find negative expected cost. We show that this undesirable characteristic of the non-linear transient impact model may be mitigated either by introducing a bid–ask spread cost or by imposing convexity of the instantaneous market impact function for large trading rates; the objective in each case is to robustify the solution in a parsimonious and natural way.     

Public Investment,the Stability Pact and the ‘Golden Rule’

The fiscal rules set in the Treaty of Maastricht and in the Stability and Growth Pact have sometimes been criticised as an excessively binding constraint for appropriate counter‐cyclical action. The risk that the rules may permanently reduce the public sector's contribution to capital accumulation has also been pointed out. In this framework, the adoption of a ‘golden rule’ has been suggested. Starting from the recent debate, this paper tackles two questions: (a) the implications of the Pact for public investment and (b) the pros and cons of introducing a golden rule in EMU's fiscal framework, given the objectives of low public debts and adequate margins for a stabilising budgetary policy. The analysis suggests that the rules set in the Treaty and in the Pact may negatively influence public investment spending. However, the golden rule, although intuitively appealing, does not seem to be an appropriate solution to the problem.     

Realized volatility forecasting: Robustness to measurement errors

In this paper, we suggest how to handle the issue of the heteroskedasticity of measurement errors when specifying dynamic models for the conditional expectation of realized variance. We show that either adding a GARCH correction within an asymmetric extension of the $\mathsf{HAR}$  class ($\mathsf{AHAR}$-$\mathsf{GARCH}$), or working within the class of asymmetric multiplicative error models ($\mathsf{AMEM}$) greatly reduces the need for quarticity/quadratic terms to capture attenuation bias. This feature in $\mathsf{AMEM}$ can be strengthened by considering regime specific dynamics. Model Confidence Sets confirm this robustness both in- and out-of-sample for a panel of 28 big caps and the S&P500 index.     

Large time‐varying parameter VARs: A nonparametric approach

In this paper we introduce a nonparametric estimation method for a large Vector Autoregression (VAR) with time‐varying parameters. The estimators and their asymptotic distributions are available in closed form. This makes the method computationally efficient and capable of handling information sets as large as those typically handled by factor models and Factor Augmented VARs. When applied to the problem of forecasting key macroeconomic variables, the method outperforms constant parameter benchmarks and compares well with large (parametric) Bayesian VARs with time‐varying parameters. The tool can also be used for structural analysis. As an example, we study the time‐varying effects of oil price shocks on sectoral U.S. industrial output. According to our results, the increased role of global demand in shaping oil price fluctuations largely explains the diminished recessionary effects of global energy price increases.     

Employability as a compass for career success: development and initial validation of a new multidimensional measure

This article reports the development and initial validation of a multidimensional measure of employability based on the theoretical model of Lo Presti and Pluviano (2016). Four different studies were designed and implemented. Study 1 was a qualitative study that involved a group of 15 labour market experts and aimed at developing the items pool. In Study 2, an exploratory factor analysis of 526 employees was carried out to examine the structure of the employability measure as previously obtained. Study 3 aimed at verifying the employability measure that had emerged from Study 2 through confirmatory factor analysis of 699 employees, resulting in a 28‐item shortened version encompassing the original four employability dimensions. Finally, in Study 4, concurrent and predictive validity of the definitive version of the employability measure were tested on a sample of 712 employees. Implications for vocational guidance and human resource management, as well as future employability research, are discussed.     

Board of directors' responsiveness to shareholders: Evidence from shareholder proposals

In recent years boards have become significantly more likely to implement non-binding, majority-vote (MV) shareholder proposals. Using a sample of 620 MV proposals between 1997 and 2004, we find that shareholder pressure (e.g., the voting outcome and the influence of the proponent) and the type of proposals are the main determinants of the implementation decision, while traditional governance indicators do not seem to affect the decision. We then examine the labor market consequences of the implementation decision for outside directors and find that directors implementing MV shareholder proposals experience a one-fifth reduction in the likelihood of losing their board seat as well as other directorships.     

Discussion of “Explicit relative performance evaluation in performance-vested equity grants”

Carter, Ittner and Zechman (2009) examine the use of explicit relative performance evaluation (RPE) conditions in performance-vested equity plans in a sample of United Kingdom (U.K.) firms in 2002. They find that factors suggested by economic theories (for example, removal of common shocks, tournament theory) are more closely associated with specific features of the plan than with the firm-level decision to use an RPE equity plan. My discussion focuses on the interpretation of these findings and the opportunities and implications for future research. I also summarize the views of five U.K. directors who were involved in the design and use of performance-vested equity plans.     

A Dismal Reality: Behavioural Analysis and Consumer Policy

Before the behavioural turn, the economic account of consumer policy concerns was too optimistic and reductive. After the turn, we, the consumers, are more likely to need from an economic perspective a more intrusive consumer policy. This is the dismality thesis defended in this article. The dismality thesis is a theoretical, comparative, and argumentative thesis, albeit normatively incomplete. It follows from two premises. First, pre-behavioural economics elaborated a restricted theory of consumer harm in unregulated markets (“consumer harm premise”) and, second, it overstated the effectiveness of information disclosure as a means of consumer policy (“institutional premise”). The dismality thesis is further supported by a comparison of the discussion of attributes control in the pre- and post-behavioural turn literature and by commenting on the main source of controversy about attributes control in the post-turn literature, the so-called “artificial truncation” of behavioural analysis.