752 SEER, 86, 4, OCTOBER 2008 This line of thinking led toan alliance with the independentMoscow Group forTrust, towhom theywere introduced by Jean. Attempting to use their status as heroines of the struggle forpeace towin official recognition for the Trust Group, they brought a member of the group along with them to a meeting with the Soviet Peace Committee, provoking an outraged reaction from SPC deputy chairman (andKGB colonel) Oleg Kharkhardin. Neverthe less, their solidarity ? and that of themany otherWestern activists who visitedMoscow in theirwake ? did enable theTrust Group to continue its work and protect it from further repression. And it is significant thatwhile Kharkhardin's mind was tightlyclosed other Soviet participants in themeet ing did not conceal an intense and sympathetic interest inwhat thewomen fromGreenham Common had to say. Readers should not be overhasty in dismissing Ann's claim that shemade an important contribution to opening up Soviet society and ending theCold War. Her testimony serves as further confirmation of the thesis so cogently argued byMatthew Evangelista ? namely, that the Cold War was brought to an end through cooperative interaction between Soviet reformers and Western disarmament activists (UnarmedForces: The TransnationalMovement to End the ColdWar, Ithaca, NY, 1999; see, also, the account ofmy collaboration with Viktor Girshfeld at ). The 'new thinking'was a product precisely of this interaction. To be sure, our effortswould hardly have borne such rapid fruitwere itnot for the rise to power ofMikhail Gorbachev. Ann Pettitt has made a few errors of detail concerning Soviet institutions and ideology. That is unfortunate. It would be even more unfortunate were a few errors ? or, perhaps, the relaxed and humorous style ? to militate against serious consideration of the insights and arguments in this book or prevent it from taking its rightfulplace in the historical record. Providence, RI Stephen D. Shenfield Pfaff, Steven. Exit-VoiceDynamics and theCollapse ofEast Germany:The Crisis of Leninism and the Revolution of ig8g. Duke University Press, Durham, NC and London, 2006. xv + 333 pp. Notes. Tables. Figures. Appendix. Bibliography. Index. ?14.95 (paperback). The fall of the German Democratic Republic (GDR) in 1989 has typically presented historians and social theoristswith a set of perplexing questions, for despite the apparent stability and exemplary nature of this regime within Eastern Europe, itwas the one to collapse most swifdy, not only under the weight of public pressure, but also without any significant violence. In his book, Steven Pfaffconvincingly explains thisconundrum through a theoretical model of exit-voice dynamics, in which he examines the implications of no-exit situations on collective voice, and the way in which this becomes redefined once an exit option is introduced. The result isboth persuasive and enlightening. In order to explain the events of 1989, Pfaff suggests five 'propositions' in thefirstchapter, shaped by Albert O. Hirschman's theories on exit, voice and reviews 753 loyalty.The most central of these is 'proposition 5': 'Exit can triggervoice, but during an episode of political contention propelled by exit, beyond a cer tain point the occurrence of exit depresses the occurrence of voice' (p. 29). Using a combination of archival research and statistical analysis of survey data, he proceeds to use qualitative and quantitative evidence to test these propositions, focusing on the industrial region of Saxony, the 'cradle of the revolution'. His findings largely support the fivepropositions, and demonstrate how the 'exiting crisis' in the GDR mobilized collective action which was largely unstructured and spontaneous in nature. As exit grew, however, network-erosion became evident amongst 'insurgent voice', yet significantiy not amongst 'loyalist voice', represented by civic movements such as New Forum. In his analysis, Pfaffdraws on key eventswhich took place during the final months of the SED dictatorship, such as the Sputnik affairofNovember 1988, the ban on visa-free travel to Czechoslovakia and the transportation of exiters on trains through Saxony in earlyOctober 1989, the celebration of theGDR's fortiethanniversary on 7October and theLeipzig 'miracle' of two days later. Clearly these events are commonly recognized as central to the regime's collapse, yet Pfaff provides significant insight into the dynamics behind the mobilization of themasses and the party during such episodes. Most signifi cant is his emphasis on the informal but dense networks of friends, relatives and...