Human Nature Review 2003 Volume 3: 12-14 ( 16 January ) URL of this document http://human-nature.com/nibbs/03/nesse.html Book Review Evolution and the Capacity for Commitment edited by Randolph M. Nesse New York: Russell Sage Foundation, 2001. Reviewed by William D. Casebeer, PhD, Department of Philosophy, HQ USAFA/DFPY, 2354 Fairchild Drive, Suite 1A10, US Air Force Academy, CO 80840, USA. Nature is red in tooth and claw. The type of creature produced by evolution is the powerful loner, who knows when to cheat and can do it well: he is a kind of Nietzschean übermensch who breaks the conventions of sociability and morality with one powerful swipe of his well-oiled and bloodied fighting appendage. Or so the poet Alfred Lord Tennyson would have you believe.1 To which I say: poppycock. With regards to paving the way for the popular reception of Darwinian evolution (or the lack thereof!), this characterization of the types of organisms produced by the struggle for survival has done far more harm than good. Randolph Nesse, the editor of the Russell Sage Foundation's volume "Evolution and the Capacity for Commitment," has assembled a wonderful collection of essays that explores the explanatory successes and limits of the red-in-tooth-and-claw worldview. Nature's evolutionary processes have produced creatures, such as (but not only) human beings, capable of committing themselves to the nurture of social norms, moral dictates, and group welfare, even when such commitment is harmful to any individual's interests narrowly construed. Our capacity to commit ourselves to these things is at the very heart of our social life. Explaining how such a capacity could have arisen, and how it is rooted in basic evolved psychological processes, is the task of this seminal volume. Diverse and multi-disciplinary, it's sure to become a well-cited classic in sociobiological circles and deserves a wider readership. Nesse contributes very useful opening and closing chapters. His definition of a commitment is "an act or signal that gives up options in order to influence someone's behavior by changing incentives or expectations." Nesse identifies four types of commitment: (1) intrinsically self-enforcing ("burning your bridges behind you"), (2) enforced by incentives controlled by others (such as a contractual obligation), (3) enforced by a concern for reputation ("you have offended my honor, sir"), and (4) enforced by emotional states (such as feelings of guilt or obligation). Any single commitment may be enforced by several of these incentives. The challenge for evolutionary theorists is to explain plausibly how these categories of incentives and their enforcements could have arisen. Full text http://human-nature.com/nibbs/03/nesse.html Other articles and reviews at http://human-nature.com/nibbs/contents.html ____________ Evolution and the Capacity for Commitment Edited by Randolph M. Nesse Russell Sage Press, New York, 2001 AMAZON - US http://www.amazon.com/exec/obidos/ASIN/0871546221/darwinanddarwini AMAZON - UK http://www.amazon.co.uk/exec/obidos/ASIN/0871546221/humannaturecom General information about the book is available at: http://www-personal.umich.edu/~nesse/eccbookinfo.htm Link to Russell Sage Press information and order form, with access to Contents, Authors, and text of Chapter 1: http://www.russellsage.org/publications/titles/evolutioncapacity.htm PRÉCIS Commitment is at the core of social life. We live in a social fabric woven from a warp of promises and a weft of threats, and we spend much of our lives deciding which commitments are credible, and trying to manage our own commitments and reputations. Classical economics and sociobiology sometimes seem to suggest that this should not be too hard, because people should generally act in ways that benefit themselves or their genes. While reciprocity and kin selection are indeed powerful principles, attempts to force all behavior into their Procrustean bed have aroused much intellectual consternation and moral indignation. This conflict has deepened the rift between biological and social sciences. Commitment offers a bridge across this chasm. In this book, some of the world's most distinguished researchers examine the nature of commitment, and the question of whether our capacities for making, assessing and keeping commitments have been shaped by natural selection. Many commitments are fairly straightforward attempts influence others by giving up options and thereby making it worthwhile to fulfill the commitment. Examples include burning your bridges behind you or signing a contract. However many commitments are not enforced by such tangible incentives. These subjective commitments are enforced by pledges of reputation and by emotions. Some are benevolent, such as a promise of life-long love. Others are not, such as a threat to murder a straying spouse. Although some such commitments may seem irrational in the extreme, they nonetheless influence us. Commitment thus offers a possible evolutionary explanation for irrational passions that are otherwise difficult to explain, and for our moral capacities. ------------------------------------------------------ CONTENTS Forward-- Herbert Gintis Introduction and Overview 1. The Evolution of Subjective Commitment-Randolph M. Nesse Section I-Core ideas from Economics 2. Commitment: Deliberate vs. Voluntary-Thomas C. Schelling 3. Cooperation through Emotional Commitment -Robert Frank 4. Game-theoretic Interpretations of Commitment-Jack Hirshleifer Section II-Commitment in Animals 5. Threat displays in animal communication: handicaps, reliability, and commitments- Eldridge S. Adams 6. Subjective commitment in non-humans: What should we be looking for, and where should be looking?-Lee Alan Dugatkin 7. Grunt, Girneys and good Intentions: The Origins of Commitment in Nonhuman Primates- Joan B. Silk Section III-Commitment in Humans 8. Honor and faking "honorability"-Dov Cohen and Joe Vandello 9. The Biology of Commitment to Groups: A Tribal Instincts Hypothesis Peter Richerson and Robert Boyd 10. Morality and Commitment-Michael Ruse Section IV-Commitment in Social Organizations: Law, Psychiatry and Religion 11. Commitment in the Clinic-Randolph M. Nesse 12. Law and the Biology of Commitment-Oliver R. Goodenough 13. Religion as Commitment-William Irons Conclusion 14. The Future of Commitment-Randolph M. Nesse DUST JACKET DESCRIPTION Commitment is a powerful social strategy whose pervasiveness is often not recognized, perhaps because it is somewhat paradoxical. Commitments involve giving up options in order to influence others. Some, such as burning your bridges behind you or signing a contract, change incentives in ways that make fulfilling the commitment advantageous. Other commitments are enforced by more intangible factors such as reputation and emotion. Such subjective commitments are commonplace, but it is hard to understand why people believe them. This book brings together 12 distinguished researchers from economics, ethology, psychology, anthropology, philosophy, medicine and law to examine the nature of commitment in unprecedented detail. They address the question of whether our capacities for commitments have been shaped by natural selection. They find examples of commitment everywhere in human social life, and they describe how social selection may have shaped specialized mental mechanisms for making and assessing subjective commitments. These mechanisms may help to account for emotional behavior that otherwise seems irrational, and perhaps also for our capacity for genuine morality. They may also offer a bridge across the rift between biological and social approaches to human nature. DUST JACKET QUOTES "If the genes of the self-serving are more likely to be perpetuated in succeeding generations, how it is that so many of us forgo self-interest in order to honor our commitments, devote large parts of our lives to the quest for knowledge, defending animal rights, human rights, or remaining true to a cause past reason? We humans routinely behave better than conventional evolutionary theory predicts we should. Evolution and the Capacity for Commitment resolves this paradox and in doing so, extends sociobiological theory to more fully encompass idiosyncrasies of the human heart. This is a revelatory book that carries us beyond premature conclusion about innate selfishness that, if accepted, erode human relationships based on any other premise. Any one looking for a rigorous alternative to Darwin's 'universal acid,' should read this book." ---Sarah Blaffer Hrdy "This is a very valuable contribution to our understanding of commitment which no serious student of the subject will wish to miss." ---Robert Trivers "Nothing is more basic to the human condition than the capacity for commitment, and nothing is more important to the capacity than its biological underpinnings and evolution. Randolph Nesse, serving as editor and connecting essayist, and the other authors of Evolution and the Capacity for Commitment are among the leaders in and around this newly emerging field of scholarship." ---Edward O. Wilson "In the 1970s, the word 'selfish' as kidnapped from common language to be applied to genes. This metaphor, however, did not say much about human psychology. Exploring the emotional make up of our species while firmly staying within an evolutionary framework, the volume spells out better than any before what is wrong with a narrow focus on human selfishness." ---Frans deWaal Link to Russell Sage Foundation Publications website, with order form, Contents, Author information, and text of Chapter 1: http://www.russellsage.org/publications/titles/evolutioncapacity.htm