The Role of Absolute Continuity in “Merging of Opinions” and “Rational Learning”

D. Blackwell and L. Dubins (1962, Ann. Math. Statist.38, 882–886) showed that opinions merge when priors are absolutely continuous. E. Kalai and E. Lehrer (1993, Econometrica61, 1019–1045) use this result to show that players in a repeated game eventually play like a Nash equilibrium. We provide an alternative proof of merging of opinions that clarifies the role of absolute continuity while casting doubt on the relevance of the result. Persistent disagreement, the opposite of merging, allows the construction of a sequence of mutually favorable “bets.” By a law of large numbers, both agents are certain they will win these bets on average. This certain disagreement violates absolute continuity. Journal of Economic Literature Classification Numbers: C11, C69, C72, D83.     

“Constitutionalizing” the corporation

To become effective instruments in the attainment of a sustainable society, corporations should have their constitutional status settled. Thus far, mainly by Supreme Court decisions, corporations have an uncertain status. They are “persons” under the Constitution and have certain rights; but unlike natural persons, they do not have concomitant constitutional duties. Corporations should be viewed as “private” governments exercising substantial power in society. They are, however, considered to be associations of individuals rather than divisions of society. The need is to legitimate their governing power by “constitutionalizing” them. That can be done by corporations accepting, or having imposed upon them, two principal constitutional duties. First, means should be developed whereby corporate officers routinely take the general good into account. That duty could be implemented by making “social impact statements,” analogous to but broader than the familiar environmental impact statements, before making important corporate decisions. Secondly, as “sociological communities,” corporate officers wield considerable power over members of those communities. A bill of rights similar to the Constitution's Bill of Rights is recommended so as to make corporate power that is necessary for achievement of societal goals as tolerable and decent as possible. Acceptance of those duties would make corporations parts of, not separate from, the greater corporation called society. They would be private, profit-making entities with a definite public function. Preferably, the duties should be voluntarily accepted. Congress, however, has undoubted constitutional power to impose both, should it so desire.     

The “Business Climate” and Economic Inequality

“Business climate indexes” characterize state economic policies, and are often used to try to influence economic policy debate. However, they are also useful in research as summaries of a large number of state policies that cannot be studied simultaneously. Prior research found that business climate indexes focused on productivity and quality of life do not predict economic growth, while indexes emphasizing taxes and costs of doing business indicate that low‐tax, low‐cost states have faster growth of employment, wages, and output. In this paper, we study the relationship between these two categories of business climate indexes and the promotion of equality or inequality. We do not find that the productivity/quality‐of‐life indexes predict more equitable outcomes, although some of the policies underlying them suggest they might. We do find, however, that the same tax‐and‐cost‐related indexes that are associated with higher economic growth are also associated with increases in inequality.     

The “similarity” and “heterogeneity” theses in studying innovation: evidence from the end-of-life vehicle case

The paper seeks to understand how eight companies in the European car industry responded to changing business conditions under the threat of regulation on the waste problem of end-of-life vehicles. It was observed that the companies pursued diverging innovation tracks in dealing with the regulatory pressure, although competing in the same markets and subject to similar regulatory pressure. The case is interesting to consider in the light of recent discussions of differences in styles of innovation. The question then is whether any sort of style of innovation may be distinguished in the diverging innovation tracks. The objective of the paper is to add to these discussions by considering the results of this case study in the light of “similarity” and heterogeneity hypotheses that may be advanced around “styles” of innovation.     

The effect of ethnic diversity on the participation in social groups: Evidence from trade unions

This paper advances the hypothesis that individuals in more ethnically fragmented societies, participate less in social groups. More precisely, the empirical analysis places the spotlight on trade unions and investigates whether ethnic diversity affects the decision of workers to participate in them. The analysis takes place along two layers: (a) country-level and (b) individual-level. First, building on a set of innovative instruments derived from the parasite-stress theory of values and sociality, our country-level analysis seeks to exploit exogenous sources of variation in ethnic diversity and establish a convincing causal relationship between ethnic diversity and trade union density across countries. In turn, we employ individual-level data from the European Social Survey (ESS) and investigate whether immigrants who cοme from more ethnically fragmented societies participate less in trade unions in their European countries of residence. Consistent with the prediction of the theory, both layers of the empirical analysis provide robust evidence of a negative, sizeable and highly significant effect of ethnic diversity on the participation in trade unions.     

At the crossroads of “futurism” and “prospective”: Towards a Canadian synthesis?

North American “future studies” and the French concept of “prospective” have been integrated to provide the basis for an attempted “Canadian Synthesis” in the approach developed by the Montreal-based think-tank, the Gamma Institute. In this paper the founding president of Gamma outlines the four stages of the approach in a conceptual framework entitled the “Chronospace” and illustrates its applicability by referring to some of Gamma's projects in the last 12 years.     

Challenging the human crisis: “The trilemma”

The great increase in world population in the coming century will result in a human crisis of worldwide proportions. A new concept for describing and proposing solutions to this crisis, called the Trilemma, is described by the authors. To feed large and growing populations, humankind is now being forced to make the difficult choice between producing sufficient food for the world population and preserving the environment, or generating economic growth, requiring the consumption of energy and natural resources. These difficult choices present the Trilemma, a new concept that is composed of three dimensions: economic growth, resources such as energy and food, and the environment. None of these three dimensions can be optimized individually as they are mutually interdependent.This paper describes a possible world energy condition in the 21st century. Three scenarios of this energy consumption are presented and compared with the possible energy supply at that time. This supply is estimated from the extrapolation of the renewable energy development of the past and the possible fossil fuel supply. The comparison of the energy supply and the energy consumption indicates that the annual rate of economic growth in the developed region would be only 1% if the gross national product (GNP) per capita of the developing region increases gradually from 1/26 of the GNP of the developed regions in 1990, to 1/10 in 2020, and finally to 1/3 in 2100.Another possibility is that if the GNP per capita of the developing region remains 1/26 of the GNP of the developed regions between 1990 and 2100, the economic growth rate in the developed region could be as large as 3%. In the latter case, an energy shortage would develop in the middle of the 21st century, even if the fast breeder reactor were fully operational by the year 2030. Energy technological developments in Japan are also described as a part of the possible countermeasures against the Trilemma.     

“Large” versus “Small” Players: A Closer Look at the Dynamics of Speculative Attacks

What is the role of “large players” (e.g., hedge funds) in speculative attacks? Recent work suggests that large players move early to induce smaller agents to attack. However, many observers argue that large players move late in order to benefit from interest‐rate differentials. We propose a model in which large players can do both. Using data on currency trading by foreign (large) and local (small) players, we find that foreign players moved last in three attacks on the Norwegian krone during the 1990s. During the attack on the Swedish krona after the Russian moratorium in 1998, foreign players moved early. Gains by delaying attack were small, however, because interest rates did not increase.     

Picking “Lemons” or Picking “Cherries”? Domestic and Foreign Acquisitions in Norwegian Manufacturing*

We compare the performance in employment, wages and productivity for domestic plants acquired by new domestic and foreign owners. Prospective foreign owners pick large, high‐wage, high‐productivity plants, while new domestic owners choose average performers of above‐average size. Employment, labour productivity, and total factor productivity decline in domestic acquisition targets before acquisitions; only wages recover afterwards. Employment, wages and labour productivity increase after foreign acquisitions. The sample selection introduced by long‐term comparisons and a focus on unique events introduces a downward bias into the results for domestic acquisitions and an upward bias for the foreign acquisitions.     

“Love of wealth” and economic growth

In a Ramsey–Cass–Koopmans growth framework it is shown that for an optimum a benevolent social planner cannot have an excessive “love of wealth”. With a “right” “love of wealth” an optimum exists and implies higher long‐run per‐capita capital, income, and consumption relative to the standard model. This has important implications for comparative development trajectories. The optimum implies dynamic efficiency with the possibility of getting arbitrarily close to the golden rule where long‐run per‐capita consumption is maximal. It is shown that the optimal path attains its steady state more slowly. Thus, the beneficial effects of love of wealth materialize later than in the standard model. Furthermore, the economy can be decentralized as a competitive private ownership economy. One can then identify “love of wealth” with the “spirit of capitalism.” The paper thus implies that one needs a “right” level of the “spirit of capitalism” to realize any beneficial effects for the long run.     

Eating like which “Joneses?” an Iterative Solution to the Choice of a Poverty Line “Reference Group”

A standard method for calculating poverty lines (e.g. Ravallion, 1994) is not fully specified. The choice of the "reference population" for determining food baskets is left to the decision of the individual analyst. However, the poverty line can be quite sensitive to the real income of the reference group because the "quality" of the food basket—measured as the food expenditures per calorie—rises sharply with income. We propose that the reference group be centered on the poverty line. To address the obvious circularity problem in choosing a reference population at the poverty line to define the poverty line, we use an iterative approach. This iterative method provides a methodological anchor that fixes the reference group.     

Comment on “On the openness to trade as a determinant of the macroeconomic elasticity of substitution”

This paper provides a comment on the analysis of the link between an economy’s openness to trade and its macroeconomic elasticity of substitution (ES) presented in Saam [Saam, M., 2008. Openness to trade as a determinant of the macroeconomic elasticity of substitution. Journal of Macroeconomics 30, 691–702.].     

“Fair marriages”: An impossibility

For marriage markets [Gale, D. and Shapley, L.S., 1962, College admissions and the stability of marriage, American Mathematical Monthly 69, 9–15.] so-called fair matchings do not always exist. We show that restoring fairness by using monetary transfers is not always possible: there are marriage markets where no amount of money can guarantee the existence of a fair allocation.     

“I even met happy gypsies”

Economic studies of the Roma population, which is the largest and the poorest ethnic minority in Europe, remain sparse due to the limited availability of appropriate micro level data. This paper provides a comparative analysis of life satisfaction between Roma and non‐Roma young adults aged between 15 and 24 years using survey data collected from Serbia in 2010 and from Bosnia and Herzegovina in 2011. Results from raw answers show that the young Roma population living in settlements is less satisfied with life than non‐Roma. However, we find instead that the former group is more satisfied once we account for the fact that Roma have more disadvantaged characteristics on average. Also, Roma young adults expect a better life within one year compared to the non‐Roma in Serbia while there is no difference in Bosnia and Herzegovina.     

The case for a “productivity norm”: Comment on Dowd

Instead of aiming for zero inflation, a “productivity norm” would allow permanent changes in the price level reflecting opposite changes in productivity or unit costs of production. Dowd (1995) disputes my claim that a productivity norm would be more conducive to macroeconomic stability than a stable price level. But Dowd's arguments succeed in undermining the case for a productivity norm only to the extent that they also undermine his own case for zero inflation.