How should one evaluate investment projects whose CCAPM betas are uncertain? This question is particularly crucial for projects yielding long-lasting impacts on the economy, as is the case for example for many green investments. We define the notion of a certainty equivalent beta. We show that...

An increasing number of central banks implement monetary policy via two standing facilities: a lending facility and a deposit facility. In this paper we show that it is socially optimal to implement a non-zero interest rate spread. We prove this result in a dynamic general equilibrium model...

Weitzman (1998) showed that when future interest rates are uncertain, using the expected net present value implies a term structure of discount rates that is decreasing to the smallest possible interest rate. On the contrary, using the expected net future value criterion implies an increasing...

We propose a model that delivers endogenous variations in term spreads driven by banks' portfolio decision while facing the risk of maturity transformation. First, we show that fluctuations of the future profitability of banks' portfolios affect their ability to cover for any liquidity needs and...

The term structure of interest rates does not adhere to the expectations hypothesis, possibly due to a risk premium. We consider the implications of a risk premium that arises from endogenous market segmentation driven by variable inflation rates. In the absence of autocorrelation in inflation,...

Legal provisions that protect politicians from arrest and prosecution exist throughout much of the modern democratic world. Why, and with what effects, do societies choose to place their politicians above the law? We examine the institution of immunity both theoretically and empirically. Our...

Because of the uncertainty about how to model the growth process of our economy, there is still much confusion about which discount rates should be used to evaluate actions having long-lasting impacts, as in the contexts of climate change, social security reforms or large public infrastructures...

It is not immediately clear how to discount distant-future events, like climate change, when the distant-future discount rate itself is uncertain. The so-called “Weitzman-Gollier puzzle” is the fact that two seemingly symmetric and equally plausible ways of dealing with uncertain future...