Explaining the World Heritage List: an empirical study

The UNESCO World Heritage List is designed to protect the global heritage. We show that, with respect to countries and continents, the existing World Heritage List is highly imbalanced. Major econometric determinants of this imbalance are historical GDP, historical population, area in square kilometers of a country, and number of years of high civilization. Surprisingly, economic and political factors, such as membership on the UN Security Council, which should be unrelated to the value of a country’s heritage and therefore should have no impact, are shown to have a systematic impact on the composition of the World Heritage List.     

Monotone comparative statics: changes in preferences versus changes in the feasible set

Let a preference ordering on a lattice be perturbed. As is well known, single crossing conditions are necessary and sufficient for a monotone reaction of the set of optimal choices from every chain. Actually, there are several interpretations of monotonicity and several corresponding single crossing conditions. We describe restrictions on the preferences that ensure a monotone reaction of the set of optimal choices from every sublattice whenever a perturbation of preferences satisfies the corresponding single crossing condition. Quasisupermodularity is necessary if we want monotonicity in every conceivable sense; otherwise, weaker conditions will do.     

Evolutionary selection of expectations in positive and negative feedback markets

An economic environment is a feedback system, where the dynamics of aggregate variables depend on individual expectations and vice versa. The type of feedback mechanism is crucial for the aggregate outcome. Experiments with human subjects (Heemeijer et al., J Econ Dyn Control 33:1052–1072, 2009) have shown that price converges to the fundamental level in a negative feedback environment but fails to do so under positive feedback. We present an explanation of these experimental results by means of a model of evolutionary switching between heuristics. Active heuristics are chosen endogenously, on the basis of their past performance. Under negative feedback an adaptive heuristic dominates explaining fast price convergence, whereas under positive feedback a trend-following heuristic dominates resulting in persistent price deviations and oscillations.     

Inventories and antidumping: the case of orange juice trade

The United States and Brazil are key players in the international market for orange juice, mainly frozen concentrated orange juice (FCOJ). The U.S. orange juice industry benefits from one of the highest levels of import protection in U.S. agriculture. Additional trade protection was recently added with a U.S. industry victory in an antidumping trade suit against Brazil. We study the impact of FCOJ imports from Brazil on U.S. prices using time series econometric models and find only a weak FCOJ domestic price response to imports from Brazil, because extremely large U.S. inventories mute the price impact of any fluctuation in imports. Our findings imply that the antidumping tariffs were unjustified based on a material injury argument.     

Herding with collective preferences

This paper studies a simple model of observational learning where agents care not only about the information of others but also about their actions. We show that despite complex strategic considerations that arise from forward-looking incentives, herd behavior can arise in equilibrium. The model encompasses applications such as sequential elections, public good contributions, and leadership charitable giving.     

Seller competition by mechanism design

This paper analyzes a market game in which sellers offer trading mechanisms to buyers and buyers decide which seller to go to depending on the trading mechanisms offered. In a (subgame perfect) equilibrium of this market, sellers hold auctions with an efficient reserve price but charge an entry fee. The entry fee depends on the number of buyers and sellers, the distribution of buyer valuations, and the buyer cost of entering the market. As the size of the market increases, the entry fee decreases and converges to zero in the limit. We study how the surplus of buyers and sellers depends on the number of agents on each side of the market in this decentralized trading environment.     

Domestic entry, optimum-welfare and maximum-revenue tariffs

In this paper, we examine the ranking of the maximum-revenue tariff and the optimum-welfare tariff under a linear Cournot oligopoly model without and with free entry of domestic firms. We demonstrate that in a regulated entry oligopoly with asymmetric costs, when the marginal cost of the domestic firms exceeds a critical value, the maximum-revenue tariff is higher than the optimum-welfare tariff. We then show that under free entry of domestic firms with asymmetric costs, when the fixed cost gets larger and the domestic firms become fewer, the difference between the optimum-welfare tariff and the maximum-revenue tariff becomes larger.     

Through the eyes of gratitude

There are complex considerations at play when deciding what nurse should work with which patient. During the course of a relationship between a patient and a nurse, or a nurse and a patient's family, remarkable and life-changing interactions can occur. The relationship between Patrick Barnes, his family, and the nurses who cared for them, was the inspiration for the creation of the DAISY Foundation. The DAISY Award focuses attention on the specific behaviors administrators want to encourage to bring the organization's vision and values to life. DAISY stories, presented publicly, uplift all who hear them. We can all learn a lot from the Barnes family story by remembering the power of compassion, the power of gratitude, and the power of recognition.     

Well-being and war

Happiness research has dealt with a great number of determinants of well-being but has neglected the effect of war. Wars drastically reduce people??s happiness. The large psychic costs of soldiers, the suffering of civilians, and the material destruction are well documented. An important issue for happiness research is how to calculate the forgone well-being of the people killed in war. Wars may also increase happiness by providing shared experiences, raising national pride, and ??ennobling?? people. ??Combat flow?? increases an individual soldier??s subjective happiness. Deep issues are elicited regarding what type of happiness is legitimate.     

Group decision-making: Head-count versus intensity of preference

This paper puts forth a framework for reshaping the group decision-making process. The proposed framework extends from the usual one-issue-at-a-time decision-making to one that involves several related issues simultaneously. Weaknesses of the traditional majority voting mechanism are first identified, and then a different voting method that takes each individual voter's sentiment into account is discussed. Specifically, a decision-maker is asked to express his/her intensity of preference for the issues encountered. Three hierarchical structures—benefits, costs, and risks—are developed to evaluate the alternatives. Due to the nature of pairwise comparisons and synthesis, the proposed method is amenable to consensus building and has higher reliability and consistency. It can be used for candidate selection, e.g. governmental election, when a large population is involved. It is also effective for resource allocation and prioritization when a small group or business is concerned. We believe the proposed approach has potential for resolving deficiencies of the conventional voting mechanism, and can be applied to many real-world problems. Its implementation on the Internet is also discussed.