I am happy to introduce the second volume of the Journal of Human Capital ’s special issue celebrating the life and work of Gary Becker. The first volume, published in the JHC last year (Summer 2018, vol. 12, no. 2), contains a collection of papers that were presented in a conference held at the Becker-Friedman Institute at the University of Chicago on October 16, 2015. We are gratified by the favorable reactionsmany of our readers have expressed about that volume, which focused largely on the central contribution of Gary Becker to economics—his seminal work on the role of investment in, and the accumulation of, human capital as a productive asset, which Becker believed to be as important as, if not more important than, the role of physical capital in the economy. The papers and web supplements appearing in that volume (https://www.journals.uchicago.edu /toc/jhc/2018/12/2) constitute just the “first serving” of the journal’s celebration of Becker’s life and work. As I noted at the end of my introduction to the first volume, the JHC had received almost as many equally meritorious papers from Becker’s long-time colleagues and students that could not be included in the 2015 conference and the first volume because of time and space constraints. These papers, which are presented in this volume, thus constitute the “second serving” of our celebration. Indeed, the second serving of the celebration of Becker’s life and work may be even more exciting, as it includes a surprise—a wonderful contribution by Gary Becker to his own memorial celebration! The article “Preference Formation within Families” by Gary S. Becker, dated 1992, is not a submission we received from another world. It is a current discovery by Guity Nashat Becker, Gary’s wife, with the help of a number of Gary’s students, in one of the many drawers and storage compartments at Gary’s home study. The article was foundwith a treasure trove of other unpublished papers Gary had written. Fortunately, three of these students, Julio Elías, Kevin Murphy, and Casey Mulligan, have un-

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介绍第2卷《庆祝加里·贝克尔的生活和工作》

我很高兴介绍《人力资本杂志》第二期，以纪念加里·贝克尔的生活和工作。第一卷于去年的JHC上发表（2018年夏季，第12卷，第2期），包含了一系列论文，这些论文在10月16日于芝加哥大学贝克-弗里德曼研究所举行的会议上发表。 2015年。我们感到高兴的是，很多读者对此书表示了赞赏，这些书主要集中在加里·贝克尔（Gary Becker）对经济学的主要贡献上—他关于投资在人力资本中的作用和积累方面的开创性工作。生产性资产，贝克尔认为，生产性资产同实物资本在经济中的作用一样重要，甚至比其重要。该卷中出现的论文和Web补充（https：//www.journals。uchicago.edu / toc / jhc / 2018/12/2）只是该杂志庆祝贝克尔生活和工作的“第一份”。正如我在第一卷导论的结尾指出的那样，JHC收到了来自贝克尔长期同事和学生的几乎同样具有功绩的论文，由于时间和空间的原因，这些论文无法纳入2015年会议和第一卷约束。这些在本卷中介绍的论文因此构成了我们庆祝活动的“第二份”。的确，庆祝贝克尔的生活和工作的第二次服务可能会更加令人兴奋，因为其中包括一个惊喜–加里·贝克尔为自己的纪念活动做出了杰出贡献！加里·贝克尔（Gary S. Becker）于1992年发表的“家庭内部的偏好形成”一文并不是我们从另一个世界收到的。这是Gary的妻子Guity Nashat Becker在许多Gary的学生的帮助下，在Gary的家庭书房的许多抽屉和储物格之一中发现的最新发现。这篇文章是由Gary撰写的其他未发表论文的宝库发现的。幸运的是，其中三个学生，朱利奥·埃利亚斯（JulioElías），凯文·墨菲（Kevin Murphy）和凯西·穆里根（Casey Mulligan），