Risk Aversion, Wealth, and Background Risk

We use household survey data to construct a direct measure of absolute risk aversion based on the maximum price a consumer is willing to pay for a risky security. We relate this measure to consumers' endowments and attributes and to measures of background risk and liquidity constraints. We find that risk aversion is a decreasing function of the endowment. thus rejecting CARA preferences. We estimate the elasticity of risk aversion to consumption at about 0.7, below the unitary value predicted by CRRA utility. We also find that households. attributes are of little help in predicting their degree of risk aversion, which is characterized by massive unexplained heterogeneity. We show that the consumer's environment affects risk aversion. Individuals who are more likely to face income uncertainty or to become liquidity constrained exhibit a higher degree of absolute risk aversion, consistent with recent theories of attitudes toward risk in the presence of uninsurable risks.Risk aversion, background risk, prudence, heterogeneous preferences

The Role of Risk Aversion in Predicting Individual Behaviour

We use household survey data to construct a direct measure of absolute risk aversion based on the maximum price a consumer is willing to pay to buy a risky asset. We relate this measure to a set of consumers' decisions that in theory should vary with attitude towards risk. We find that elicited risk aversion has considerable predictive power for a number of key household decisions such as choice of occupation, portfolio selection, moving decisions and exposure to chronic diseases in ways consistent with theory. We also use this indicator to address the importance of self-selection when relating indicators of risk to individual saving decisionsRisk aversion, heterogeneous preferences, choice under risk, entrepreneurship, self selection

Risk Aversion, Wealth and Background Risk

We use household survey data to construct a direct measure of absolute risk aversion based on the maximum price a consumer is willing to pay to buy a risky security. We relate this measure to consumers' endowment and attributes and to measures of background risk and liquidity constraints. We find that risk aversion is a decreasing function of endowment - thus rejecting CARA preferences - but the elasticity to consumption is far below the unitary value predicted by the CRRA utility. We also find that households' attributes are of little help in predicting their degree of risk aversion, which is characterized by massive unexplained heterogeneity. However, the consumers' environment affects risk aversion. Individuals who are more likely to face income uncertainty or to become liquidity constrained exhibit a higher degree of absolute risk aversion, consistent with recent theories of attitudes towards risk in the presence of uninsurable risks.heterogeneous preferences, risk tolerance, background risk, liquidity constraints

THE ROLE OF RISK AVERSION IN PREDICTING INDIVIDUAL BEHAVIOR

We use household survey data to construct a direct measure of absolute risk aversion based on the maximum price a consumer is willing to pay to buy a risky asset. We relate this measure to a set of consumersÂ’ decisions that in theory should vary with attitude towards risk. We find that elicited risk aversion has considerable predictive power for a number of key household decisions such as choice of occupation, portfolio selection, moving decisions and exposure to chronic diseases in ways consistent with theory. We also use this indicator to address the importance of self-selection when relating indicators of risk to individual saving decisions.risk aversion, heterogeneous preferences, choice under risk, entrepreneurship, self selection.

A rough examination of the value of gas storage

This paper studies the impast of a fire in 2006 which removed the possibility of access to the Rough gas storage facilities covering 80% of total UK storage, at a time when major withdrawals from storage would likely have taken place. Implicitly, it shows the value of such storage facilities, in a country with relatively little storage, where we might therefore see a considerable impact. We find that the major effect on activity was through an increased sensivity of supply to prices and an increased variance in this sensitivity, not through plysical shortages of gas

A Rough Examination of the value of gas storage

This paper studies the impast of a fire in 2006 which removed the possibility of access to the Rough gas storage facilities covering 80% of total UK storage, at a time when major withdrawals from storage would likely have taken place. Implicitly, it shows the value of such storage facilities, in a country with relatively little storage, where we might therefore see a considerable impact. We find that the major effect on activity was through an increased sensivity of supply to prices and an increased variance in this sensitivity, not through plysical shortages of gas.

Do capital gains affect consumption? Estimates of wealth effects from Italian householdsÂ’ behavior

We use detailed data on housing prices in Italy available for a large number of years and with a fine geographical breakdown to compute capital gains and losses on the most widespread asset among consumers, housing, and inquire whether changes in housing values affect consumption. We find that consumer expenditures do react to capital gains, with a marginal propensity to consume out of real value changes of housing wealth of about 0.02. Reactions are different across types of consumers: while homeowners increase consumption when house prices increase, with a marginal propensity of about 0.035, the rentersÂ’ response to the higher house cost tends to be that of increased savings. For the owners of listed stocks the response to capital gains is difficult to estimate with statistical precision, even if, for the limited sample of owners of these assets, its negative sign may be indicative of prevailing substitution over income effects.wealth effects, consumption, housing, stock ownership

Price transmission in the UK electricity market : was NETA beneficial?

This paper explores the relationship between domestic retail electricity prices in Great Britain and their determinants in the particular context of the New Electricity Trading Arrangements (NETA) introduced in 2001. The analysis requires a consistent comparison of wholesale power price series before and after NETA, which we investigate using a range of wholesale future price series. Despite its stated intention of reducing prices, we conclude that the net effect of NETA alongside other developments instead merely rearranged where money was made in the system.Electricity generation ; electricity supply ; retail pricing ; futures markets ; energy market competition

Finite-discrete element modelling of masonry infill walls subjected to out-of-plane loads

In this paper, the out-of-plane response of infill walls is investigated by means of non-linear monotonic (push-over) analyses through a combined finite and discrete modelling approach. The model accounts for material deformability, crack formation, sliding, separa-tion and formation of new contacts. Masonry units are modelled as finite elements, and differ-ent material models are assumed for the masonry. Contact between masonry units, and between masonry and frame elements is modelled by means of interfaces, which permit tan-gential motion with frictional sliding. Frame elements are modelled by means of a linear-elastic material. The results of the numerical analyses are compared with those of experimen-tal tests available in the literature. The advantages and disadvantages of the adopted model-ling strategy are investigated

Evaluation of Nonlinear time-series models for real-time business cycle analysis of the Euro area

In this paper, we aim at assessing Markov-switching and threshold models in their ability to identify turning points of economic cycles. By using vintage data that are updated on a monthly basis, we compare their ability to detect ex-post the occurrence of turning points of the classical business cycle, we evaluate the stability over time of the signal emitted by the models and assess their ability to detect in real-time recession signals. In this respect, we have built an historical vintage database for the Euro area going back to 1970 for two monthly macroeconomic variables of major importance for short-term economic outlook, namely the Industrial Production Index and the Unemployment Rate.Business cycle, Euro zone, Markov switching model, SETAR model, unemployment, industrial production.