We propose a portfolio selection model based on a class of monotone preferences that coincide with mean-variance preferences on their domain of monotonicity, but differ where mean-variance preferences fail to be monotone and are therefore not economically meaningful. The functional associated to...

The traditional multivariate Lévy process constructed by subordinating a Brownian motion through a univariate subordinator presents a number of drawbacks, including the lack of independence and a limited range of dependence. In order to face these, we investigate multivariate subordination,...

In a single-commodity, pure-exchange, representative-agent economy with many Lucas' trees whose dividends are geometric Brownian motions, I study the comparative statics of the prices of these assets with respect to the current Brownian realization. As is well-known, due to wealth effects, a...

I analyze the equilibrium level of liquidity and its relevance for the allocation of credit, when the notion of liquidity is related to private information. The general equilibrium analysis yields the following main implications: firstly, it provides an explanation of procyclical liquidity even...

In the context of decision making for retirees of a defined contribution pension scheme in the de-cumulation phase, we formulate and solve a problem of finding the optimal time of annuitization for a retiree having the possibility of choosing her own investment and consumption strategy. We...

Labor market reforms increasing flexibility at the margin have been recently paying out in terms of employment growth. This paper argues that two-tier labor market reforms have a transitional honeymoon, job creating effect. In a dynamic model of labor demand under uncertainty, the paper predicts...

In this paper we use doubly stochastic processes (or Cox processes) in order to model the random evolution of mortality of an individual. These processes have been widely used in the credit risk literature in modelling default arrival, and in this context have proved to be quite flexible,...

In 1995, the Social Security Administration started sending out the annual Social Security Statement. It contains information about the worker’s estimated benefits at the ages 62, 65, and 70. We use this unique natural experiment to analyze the retirement and claiming decision making. First,...

We introduce a notion of complete monotone quasiconcave duality and we show that it holds for important classes of quasiconcave functions.

This paper presents a theory in which risk-averse heterogeneously talented entrepreneurs are the key agents driving the process of development and modernisation. Entrepreneurial skills are private information, which prevents full risk sharing. In that setup, development to a modern industrial...