This paper addresses the issue of portfolio risk exposure as a function of age, and it focuses the debate by presenting detailed cross-sectional evidence about individual portfolios. It provides new empirical results that characterized the relationship between age and the risk exposure of...

The profession has been longing for closed-form solutions to consumption functions under uncertainty and borrowing constraints. This paper proposes an analytical approach to solving buffer-stock saving models with both idiosyncratic and aggregate uncertainties. It is shown analytically that an...

A speech at the CFA Society of Nebraska, Omaha, Neb., Feb. 15, 2007

Heating demand accounts for a large fraction of the overall energy demand of private households in Germany. A better understanding of the adoption and diffusion of energy-efficient and renewables-based residential heating systems (RHS) is of high policy relevance, particularly against the...

Insight into the homeowner’s adoption decisions in favor of a specific innovative residential heating system (RHS) helps us to understand and assess the dynamics of the adoption and diffusion of such technological systems as a “social” phenomenon. This phenomenon emerges from the...

Space heating accounts for a large fraction of the primary energy consumption and CO2 emissions of residential buildings. Besides targeting the insulation standard, residential heating systems (RHS) based on renewable energy sources offer the potential to reduce energy demand for space heating....