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This paper examines the implications of standard barter models of market equilibrium for financial security returns in New Zealand. The key question addressed is: does the ‘equity premium puzzle’ of Mehra and Prescott (1985) found in the U.S. also hold in ?ew Zealand? To examine the existence of the equity premium puzzle, quarterly financial security returns and consumption data are examined from 1965 to 1997 to calibrate parameters in the Consumption Based Asset Pricing Model. Unlike much of the existing international evidence, this paper corrects for durable goods consumption following the assumptions of the model that all consumption be consumed in a given period. Numerical analyses indicate that the class of models examined are unable to generate equity premia consistent with historical estimates of the equity premium in New Zealand. Due to small sample variability however, while this discrepancy is material in size, the result is not statistically significant.

We estimate a dynamic programming model of schooling decisions in which the degree of risk aversion can be inferred from schooling decisions. In our model, individuals are heterogeneous with respect to school and market abilities but homogeneous with respect to the degree of risk aversion. We allow endogenous schooling attainments to affect the level of risk experienced in labor market earnings through wage dispersion and employment rate dispersion. We find a low degree of relative risk aversion (0.93) and the estimates indicate that both wage and employment rate dispersions decrease significantly with schooling attainments. We find that a counterfactual increase in risk aversion will increase schooling attainments. Finally, the low degree of risk aversion implies that an increase in earnings dispersion would have little effect on schooling attainments.

We demonstrate in a laboratory experiment that the effectiveness of performance-contingent incentives is inversely related to risk-aversion levels. For about 16.5% of participants, performance fails to improve under performance-pay, and the probability of such failure increases with risk-aversion. This phenomenon works in part through the reduced effort level of more risk-averse individuals when effort level is positively correlated with risk exposure. It is also associated with higher self-reported levels of stress by more risk-averse people working under performance-contingent pay. We find no evidence of such stress causing decrements in the quality of effort affecting performance after controlling for effort level. However, controlling for effort, more risk-averse participants perform better under a fixed salary, leaving less room for improvement under performance-pay.

We review the experimental evidence on risk aversion in controlled laboratory settings. We review the strengths and weaknesses of alternative elicitation procedures, the strengths and weaknesses of alternative estimation procedures, and finally the effect of controlling for risk attitudes on inferences in experiments.

From 2007, New Zealand firms must report the cost of granting employee stock options (ESOs). Market‐based option pricing models assume that option holders are unconstrained in their portfolio choices and thus are indifferent to the specific risk of any firm. By contrast, ESO holders are frequently required to hold portfolios that are over‐exposed to the firm that employs them and so adopt exercise policies that reflect their individual risk preferences. Applying the model of Ingersoll (2006) to hypothetical ESOs, we show that ESO cost can be extremely sensitive to employee characteristics of risk aversion and under‐diversification. This result casts doubt on the usefulness of any market‐based model for pricing ESOs, since such models, by definition, produce option values that are independent of employee characteristics. By limiting employee discretion over the choice of exercise date, vesting restrictions help reduce the magnitude of this problem.

Some labor supply curves exhibit inflection points at which they bend backward or fall forward; thus, some workers alternate between increasing and decreasing their labor hours as wages increase. No consensus has yet been reached on the underlying motive for such behavioral inconsistencies. This paper aims to develop a unified theory to explain each of these variations in labor supply.

The author employs a simple model of labor supply with additively separable utility over income and leisure. The sub-utility function for income is of the Friedman-Savage type, exhibiting preferences that alternate between increasing and diminishing marginal utility of income.

Labor supply curves slope downward where relative risk aversion is strong, and upward where relative risk aversion is weak or negative. Thus, utility functions with inflection points can form the basis of labor supply curves with inflection points.

Friedman-Savage utility can explain virtually any observed labor supply functions, including convex, backward-bending, forward-falling, and inverted-S curves.

Inflection points on the labor supply curve can create multiple and unstable market equilibria. Labor-market policies, including legislation pertaining to minimum wages and collective bargaining, and policies to enhance education and economic security, may reduce aversion to risk and thereby decrease the prevalence of unstable equilibria.

This paper unites two lines of research – labor supply and Friedman-Savage utility – which have, rather remarkably, been separate to date. In doing so, it provides a new application of the classic Friedman-Savage paradigm, and a new explanation of labor supply curves with negatively-sloped regions.

The purpose of this paper is to investigate and test for changes in investor risk aversion and the stochastic discount factor (SDF) using options data on the West Texas Intermediate crude oil futures contract during the 2007-2011 period.

Risk aversion functions and SDFs are estimated using parametric approaches before and after four specific dates of interest. The dates are: the summer 2008 end of the bull market regime; the late 2008 credit freeze trough; the BP Deepwater Horizon explosion; and the Libyan uprising.

Absolute risk aversion functions and SDFs are significantly flatter (less decreasing in wealth) after the end of the bull market and the credit freeze trough. After these two market reversals, oil market participants were less risk-averse for low levels of wealth but more risk-averse for high wealth levels. Oil market investors also increased their valuation of anticipated future wealth in average states of nature relative to very high or very low-asset return states after reversals. The BP explosion and the Libyan uprising led to steeper risk aversion functions (decreasing more rapidly in wealth) and SDF. Oil market investors were more risk-averse for lower future wealth, but less risk-averse for higher future wealth. Oil market investors increased their valuation of anticipated future wealth in extreme states of nature relative to average states of nature after both dates.

Documenting statistically and economically significant changes in oil market investors’ attitude toward risk and inter-temporal appetite for risk in relation to changes in financial and political conditions.

The currency premium is one of the three components of the differential between local and foreign interest rates. Emerging economies such as South Africa typically face positive interest rate differentials, that is, a higher cost of capital than developed economies. In this chapter we aim at identifying the determinants of the South African rand–U.S. dollar currency premium using monthly data over the period 1997–2008. We carry out an empirical analysis using dynamic time series econometric techniques to estimate the determinants of the one-month and one-year currency premia. Our findings show that the currency premia at both horizons are driven by long-run movements in the expected inflation differential between South Africa and the United States, risk aversion as a proxy for the price of rand exchange risk, and the volatility of the rand exchange rate as an indicator of the quantity of that risk. Misalignments in the real effective or rand–U.S. dollar bilateral exchange rates display mixed results in terms of their impact and statistical significance on both currency premium. Our parameter estimators overall are stable and robust to sample variations. Monetary policy is an important determinant of currency premia at both one-month and one-year horizons, but risk aversion is equally important to determine its time fluctuations.