Preference for safety under the Choquet model: in search of a characterization

Victor prefers safety more than Ursula if whenever Ursula prefers a constant to an uncertain act, so does Victor. This paradigm, whose expected utility (EU) version is Arrow and Pratt’s more risk aversion concept, will be studied in the Choquet expected utility (CEU) model. Necessary condition Pointwise inequality between a function of the utility functions and another of the capacities is necessary and sufficient for the preference by Victor of safety over a dichotomous act whenever such is the preference of Ursula. However, increased preference for safety versus dichotomous acts does not imply preference by Victor of safety over a general act whenever such is the preference of Ursula. A counterexample will be provided, via the casino theory of Dubins and Savage. Sufficient condition Separation of the two functions by some convex function is sufficient for Victor to prefer safety more than Ursula, over general acts. Furthermore, a condition on the capacities will be presented for simplicity seeking, the preference by Victor over any act for some dichotomous act that leaves Ursula indifferent. This condition is met in particular if Victor’s capacity is a convex function of Ursula’s capacity. For these cases, the pointwise inequality (necessary) condition is a characterization of greater preference for safety, extending the Arrow–Pratt notion from EU to CEU and rank-dependent utility (RDU). These inequalities preserve the flavor of the “more pessimism than greediness” characterization of monotone risk aversion by Chateauneuf, Cohen and Meilijson in the RDU model and its extension by Grant and Quiggin to CEU. Preferences between safety and dichotomous acts are at the core of the biseparable preferences model of Ghirardato and Marinacci.     

MONETARY AND FISCAL INTERACTIONS: SHORT‐RUN AND LONG‐RUN IMPLICATIONS

We model policy interactions in a growing economy. Unemployment can persist and matters for the real wage; conflicting claims underpin inflation outcomes; and aggregate demand determines capacity utilization and unemployment. Monetary policy is characterized by a Taylor rule. Fiscal policy is characterized by a marginal tendency to run deficits or surpluses. We address three questions: can monetary policy ensure macroeconomic stability in the absence of coordinated fiscal policy, can fiscal policy ensure macroeconomic stability when the monetary authority pegs the interest rate, and can policy authorities trade‐off some sustained inflation for a long‐run improvement in unemployment rates?     

Trade,Migration, and Inequality in a World without Factor Price Equalization

The behavior of trading economies in the absence of factor price equalization is not well understood, although empirical evidence against factor price equalization is overwhelming. We map regions of diversification and specialization for competitive world economies with different factor endowment partitions. Goods and factor price responses as economies move within and across different regions of specialization are explored using a series of novel diagrams. The usefulness of endogenizing patterns of specialization is illustrated by considering the impact on inequality of migration flows (such as US–Mexico), the substitutability of trade and migration, and the impact of the entry of a large unskilled labor‐intensive economy (such as China) on factor prices and factor flows.     

Nonlinearity,nonstationarity, and thick tails: How they interact to generate persistence in memory

We consider nonlinear functions of random walks driven by thick-tailed innovations. Nonlinearity, nonstationarity, and thick tails interact to generate a spectrum of autocorrelation patterns consistent with the observed persistence in memory of many economic and financial time series. Depending upon the type of transformation considered and whether it is observed with noise, the autocorrelations are given by unity, random constants, or hyperbolically decaying deterministic functions, possibly with some independent noise, and thus may decay slowly or even not at all. Along with other sample characteristics, such patterns suggest that these three ingredients may generate the ubiquitous evidence for long memory.     

Moving from pilgrimage to responsible tourism: the case of Palestine

Since the beginning of the twentieth century, Palestine has seen complicated changes in its political circumstances, most notably the creation of Israel in 1948 and the 1967 war, where Israel occupied the West Bank and the Gaza Strip. These events have created catastrophic political, economic and social facts which deeply affected the life of the Palestinian people. In this context, tourism became a political tool in the supremacy and domination of the Israeli establishment over land, and people, and an instrument for preventing the Palestinians from enjoying the benefits and the fruits of cultural and human interaction on which tourism thrives. Israel controls all access to Palestine (land and sea borders), most of the Palestinian water resources and all movements of people and goods from, to and within Palestine. This article assesses the role that tourism may play in promoting peace by presenting the Palestinian Initiative for Responsible Tourism – code of conduct – and its contribution to peace. In addition, issues of sustainability and the triple bottom line will be evaluated which could go a long way towards healing some of the divisions in the Palestinian/Israeli society.     

Experts with a conflict of interest: a source of ambiguity?

We present an experimental design where uncertainty is generated from the advice of experts with conflicts of interest. In this experiment clients are faced with a variant of a multi-armed bandit problem with a random end-time. On the known arm (the “task screen”), clients can earn a certain payment per completion of a decoding task. However, clients may also opt for the unknown arm where they earn an uncertain amount if they end the experiment on this “expert screen”. The amount is uncertain to the clients because the value is being communicated through an “expert” with conflicted incentives. A control session provides for direct transmission of the value to the clients. Our results show that ambiguity aversion is alive-and-well in this environment. Also, when we vary the wage rate on the known arm we find that higher opportunity cost clients are less likely to heed the advice of conflicted experts.     

Alternative Tourism and Sustainable Development in Kenya

This article examines alternative tourism and especially the form dubbed ecotourism and assesses its prospects for sustainable development in Kenya. It also considers community participation in ecotourism, the Kenya government policy on ecotourism, and the initiatives to yield sustainable development in the country. The findings show that biodiversity conservation encourages and supports tourism which, in turn, provides money for conservation efforts and local development programmes. However, ecotourism has not necessarily led to small scale, locally owned tourism enterprises expected in the ecotourism model. The analysis shows nevertheless that alternative tourism development has drawn attention to the role of local people in biodiversity conservation, the basis of ecotourism. Hopefully, this will lead to greater local participation in the ownership, management and control of ecotourism enterprises.     

A comparative study of codes of ethics in health care facilities and energy companies

Though written corporate codes of ethics have been touted as a panacea for the embarrassments and uncertainties of the past two decades, the absence of clear evaluation procedures severely compromises their usefulness. An ethnographic study comparing development processes and compliance outcomes in large health care facilities and energy companies shows that neither of the two industries has encountered much success with a codes of ethics program. Companies that distribute copies of their code of ethics seldom ensure the process is completed or that employees understand the purpose of the document, and staff responsible for the code give it a low priority relative to their overall responsibilities. Contrary to expectations, health care facilities are no more likely to develop or implement codes of ethics effectively than are energy companies. More extensive research is needed in order to generate the data necessary for the development of realistic standards for the evaluation of codes of ethics.Isaac D. Montoya, is President of Affiliated Systems Corporation, a management and research consulting practice specializing in the health care industry. He has worked with numerous hospitals, medical schools, and government entities in developing health care systems around the world. He has developed training programs for health care personnel, administrators, and Boards of Directors as well as taught at the University of Texas Health Science Center at Houston. He serves on a number of Boards of Directors and Federal grant review committees.Alan J. Richard, is a Research Assistant for Affiliated Systems Corporation. Recently, he helped prepare a statistical analysis of Ryan White funding priorities for Harris County HIV Services. He is currently engaged in an evaluation of cocaine abuse treatment modalities at Riverside Hospital in Houston, Texas.     

CORPORATE GOVERNANCE IN JAPAN AND THE UK: CODES,THEORY AND PRACTICE

We reflect on the evolution of corporate governance and the role of institutional investors in enhancing governance in Japan and the UK. Japan places emphasis on stakeholder capitalism, whereas the UK places emphasis on shareholder capitalism. Nonetheless, in both countries, institutional investors have exerted significant influence on the evolution of corporate governance. Institutional investors in the UK have more power over company management than their Japanese counterparts, although it is alleged that these powers are not exercised to their best potential in either country.