This paper studies the design of law-making and law enforcement institutions based on the premise that law is inherently incomplete. Under incomplete law, law enforcement by courts may suffer from deterrence failure, defined as the socialwelfare loss that results from the regime's inability to...

Allowing for a richer information structure than usual, we show that rational traders’ calculation with short-term price fluctuations may heavily influence their behaviour even if the interim price is not influenced by non-rational agents i.e. there is no noise trader risk. Instead, traders...

This paper introduces a tractable, structural model of subjective beliefs. Since agents that plan for the future care about expected future utility flows, current felicity can be increased by believing that better outcomes are more likely. On the other hand, expectations that are biased towards...

The Wong-Viner Envelope Theorem on the equality of long-run and short-run marginal costs (LRMC and SRMC) is reformulated for convex but generally nondifferentiable cost functions. The marginal cost can be formalized as the multi-valued subdifferential a.k.a. the subgradient set but, in itself,...

The “short-run approach” calculates long-run producer optima and general equilibria by building on short-run solutions to the producer’s profit maximization problem and on profit-based valuation of the fixed inputs. We outline this method and illustrate it on an example of peak-load pricing.

We develop a simple dynamic model of decision making in the presence of moral constraints. Norm violations induce a temporal feeling of guilt that depreciates with time. Due to endogenous fluctuations of guilt, people exhibit a dynamic inconsistency in social preferences—a behavior we term...

The 2004 Presidential Election in Mozambique was marred by allegations of fraud. We assess the validity of these allegations by testing whether or not qualitative descriptions of the methods and locations of misconduct are consistent with a series of simple quantitative tests. Most studies of...

We investigate the causal relationship between judicial efficiency and firm size across Italian municipalities, exploiting spatial discontinuities in tribunals' jurisdiction for identification. Results show that halving the length of civil proceedings, average firm size would increase by around...

We model differences among agents in their ability to recognise temporal patterns of prices. Using the concept of DeBruijin sequences in two dynamic models of markets, we demonstrate the existence of equilibria in which prices fluctuate in a pattern that is independent of the fundamentals and...