人類的政治生活中，經常面臨「群體利益」與「個人利益」難以兩全的情況，面對這樣的兩難，當事人將如何抉擇？ 這涉及政治 生活的本質，我們也希望了解台灣民眾的傾向。 有鑑於此，本研究乃針對台灣民眾對於兩岸經貿的糾結，透過 2008 年又一波經貿開放前後所進行的三次平行民調，觀察他們如何在兩難間取捨。 我們的研究顯示，台灣民眾對經貿開放的立場，既受其所認知的整體利害，也為其所認定的個人得失所左右。 兩者若有所衝突，民眾一般無所適從。 但因此而有所糾結的民眾，則往往更在意整體利害：兩岸開放若對台灣有害，民眾即支持緊縮；反之，則傾向贊成開放。 Collective interests and private interests are often at odds in politic al life. If facing the dilemma, what would Taiwanese stand for? Starting from the problem, we pick the cross-Strait exchanges as the case, and study the choices of the Taiwanese people. To do so, we conduct three parallel surveys to observe the dynamics their choices with and without dilemmas. Our research suggests that these people care about both collective and private interests. If the two are directly at odds, however, they would normally be caught in between and could take a clear position on the issue. But if they could get away from the difficult choice, they generally tend to stand for the collective interests: if they figure cross-Strait exchanges are good Taiwan, they would for it; if not , they would definitely against it.