Sustainability: Suspicions Concerning Attainability, with Particular Reference to the Pacific

Sustainability and unsustainability are frequently deployed in discussions of intended, predicted and observed changes occurring in or impacting on Pacific islands societies. Local communities often have their own distinctive understanding of the natural environment. Their concern for sustainability frequently extends further afield – to languages, cultures, and other aspects of life. International agreements and the constitutions of a number of Pacific islands countries address relevant issues. Constitutional government in the region has been remarkably sustained. Sustainable development has diverse dimensions and can be controversial. Climate change and rising sea-levels threaten the very survival of low-lying islands. Harvesting of non-renewable resources raises particular issues. Pacific islands studies have made significant contributions to scientific knowledge and human understanding of issues and processes of wider, even global importance

Did Unilateral Divorce Laws Raise Divorce Rates? A Reconciliation and New Results

Application of the Coase Theorem to marital bargaining suggests that shifting from a consent divorce regime to no-fault unilateral divorce laws should not affect divorce rates. Each iteration of the empirical literature examining the evolution of divorce rates across US states has yielded different conclusions about the effects of divorce law liberalization. I show that these results reflect a failure to jointly consider both the political endogeneity of these divorce laws and the dynamic response of divorce rates to a shock to the political regime. Taking explicit account of the dynamic response of divorce rates to the policy shock, I find that liberalized divorce laws caused a discernible rise in divorce rates for about a decade, but that this increase was substantially reversed over the next decade. That said, this increase explains very little of the rise in the divorce rate over the past half century. Both administrative data on the flow of new divorces, and measures of the stock of divorcees from the census support this conclusion. These results are suggestive of spouses bargaining within marriage, with an eye to their partner's divorce threat.

Happiness and the Human Development Index: Australia is Not a Paradox

In "Happiness and the Human Development Index: The Paradox of Australia," Blanchflower and Oswald (2005) observe an apparent puzzle: they claim that Australia ranks highly in the Human Development Index (HDI), but relatively poorly in happiness. However, when we compare their happiness data with the HDI, Australia appears happier, not sadder, than its HDI score would predict. This conclusion also holds when we turn to a larger cross-national dataset than the one used by Blanchflower and Oswald, when we analyse life satisfaction in place of happiness, and when we measure development using GDP per capita in place of the HDI. Indeed, in the World Values Survey, only one other country (Iceland) has a significantly higher level of both life satisfaction and happiness than Australia. Our findings accord with numerous cross-national surveys conducted since the 1940s, which have consistently found that Australians report high levels of wellbeing.

Interpreting prediction market prices as probabilities

While most empirical analysis of prediction markets treats prices of binary options as predictions of the probability of future events, Manski (2004) has recently argued that there is little existing theory supporting this practice. We provide relevant analytic foundations, describing sufficient conditions under which prediction markets prices correspond with mean beliefs. Beyond these specific sufficient conditions, we show that for a broad class of models prediction market prices are usually close to the mean beliefs of traders. The key parameters driving trading behavior in prediction markets are the degree of risk aversion and the distribution on beliefs, and we provide some novel data on the distribution of beliefs in a couple of interesting contexts. We find that prediction markets prices typically provide useful (albeit sometimes biased) estimates of average beliefs about the probability an event occurs.Forecasting ; Financial markets ; Econometric models

Explaining the Favorite-Longshot Bias: Is it Risk-Love or Misperceptions?

The favorite-longshot bias describes the longstanding empirical regularity that betting odds provide biased estimates of the probability of a horse winning—longshots are overbet, while favorites are underbet. Neoclassical explanations of this phenomenon focus on rational gamblers who overbet longshots due to risk-love. The competing behavioral explanations emphasize the role of misperceptions of probabilities. We provide novel empirical tests that can discriminate between these competing theories by assessing whether the models that explain gamblers’ choices in one part of their choice set (betting to win) can also rationalize decisions over a wider choice set, including compound bets in the exacta, quinella or trifecta pools. Using a new, large-scale dataset ideally suited to implement these tests we find evidence in favour of the view that misperceptions of probability drive the favorite-longshot bias, as suggested by Prospect Theory.pricing under risk, probability, weighting, compound lotteries, favourite-longshot bias

Experimental Political Betting Markets and the 2004 Election.

Betting on elections has been of interest to economists and political scientists for some time. We recently persuaded TradeSports to run experimental contingent betting markets, in which one bets on whether President Bush will be re-elected, conditional on other specified events occurring. Early results suggest that market participants strongly believe that Osama bin Laden's capture would have a substantial effect on President Bush's electoral fortunes, and interestingly that the chance of his capture peaks just before the election. More generally, these markets suggest that issues outside the campaign, like the state of the economy, and progress on the war on terror , are the key factors in the forthcoming election.Other Topics

The Role of Shocks and Institutions in the Rise of European Unemployment: The Aggregate Evidence

Two key facts about European unemployment must be explained: the rise in unemployment since the 1960s, and the heterogeneity of individual country experiences. While adverse shocks can potentially explain much of the rise in unemployment, there is insufficient heterogeneity in these shocks to explain cross-country differences. Alternatively, while explanations focusing on labor market institutions explain cross-country differences explain current heterogeneity well, many of these institutions pre-date the rise in unemployment. Based on a panel of institutions and shocks for 20 OECD nations since 1960, we find that the interaction between shocks and institutions is crucial to explaining both stylized facts. We test two specifications, and each offers significant support for our interactions hypothesis. The first speculation assumes that there are common but unobservable shocks across countries, and that these shocks have a larger and more persistent effect in countries with poor labor market institutions. The second constructs series for the macro shocks, and again finds evidence that the same size shock has differential effects on unemployment when labor market institutions differ. We interpret this as suggesting that institutions determine the relevance of the unemployed to wage-setting, thereby determining the evolution of equilibrium unemployment rates following a shock.

The Paradox of Declining Female Happiness

By many objective measures the lives of women in the United States have improved over the past 35 years, yet we show that measures of subjective well-being indicate that womenâs happiness has declined both absolutely and relative to men. The paradox of womenâs declining relative well-being is found across various datasets, measures of subjective well-being, and is pervasive across demographic groups and industrialized countries. Relative declines in female happiness have eroded a gender gap in happiness in which women in the 1970s typically reported higher subjective well-being than did men. These declines have continued and a new gender gap is emerging − one with higher subjective well-being for men.job satisfaction, women's movement, gender, happiness, life satisfaction, subjective well-being

Five Open Questions About Prediction Markets

Interest in prediction markets has increased in the last decade, driven in part by the hope that these markets will prove to be valuable tools in forecasting, decision-making and risk management -- in both the public and private sectors. This paper outlines five open questions in the literature, and we argue that resolving these questions is crucial to determining whether current optimism about prediction markets will be realized.