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The article provides an update on the MCM/ICM contests, explaining that a special Spring contest was held to accommodate teams unable to participate in the regular contest due to COVID-19. It also mentions new internship opportunities with Two Sigma and Anzu Partners for exceptional teams. The article introduces a policy on the use of artificial intelligence aids in the contests, emphasizing transparency and responsible use. The individual mentioned is a highly respected mathematician with extensive experience as an editor and co-author of a popular textbook on the practical applications of mathematics. [Extracted from the article]

This document is an editorial from the UMAP Journal introducing new Associate Editors. The editorial expresses gratitude to retiring members of the editorial board and welcomes the new members. The new Associate Editors are Douglas Fletcher, Eric Marland, Jan Rycht ´ a ˇ r, and Guangming Yao. The editorial explains the roles of Associate Editors, which include attracting authors, refereeing manuscripts, and contributing to the journal. Readers are encouraged to contribute their own articles, reviews, and editorials, and there is also an opportunity to join the Editorial Board as an Associate Editor. The editorial concludes with information about the Editor, Paul Campbell. [Extracted from the article]

The amount of benefit depends only indirectly on date of birth but directly on the number of months between retirement and FRA. Actuarialneutrality means that if a worker works one more year, the expected lifetime benefit increases only by the amountof"additionalentitlement"earnedinthatyear; whileaworkerwhoretiresayearearlier hasexpectedlifetimebenefitreducedbothbythe"additionalentitlement"thatwouldhavebeen earned in that year and also by an amount reflecting that benefits are expected to be paid for (approximately) one additional year. Biggs[2020]notesthattheSocialSecuritybenefitformulaisdetermined by the average earnings in the economy in the year when a worker turns 60, so furloughs and job losses in 2020 are expected to produce decreased benefits for workers retiring at age 62 in 2022, with benefits estimated to be13%lowerthanoriginallyprojected. Let • m =greatestintegerinnumberofmonthsfromage62untilretirement, withm2 [0,96](soweassumenooneretiresbeyondage70); • f = greatest integer in number of months from age 62 until full retirementage(FRA),withf2 [48,60]; • d =m f =differencebetweenretirementageandFRA,inmonths,so 60 d 48andm =d+f;and • B(d,f)= benefit as a proportion of PIA for a person with FRAf who retiresdmonthsbeforeFRA,thatis,mmonthsafterturning62. [Extracted from the article]

Since then, Kayla has become very involved with ICM as a head judge, problem author, final judge, judges' commentary author, triage judge coordinator, and triage judge. MathServe originated in 1998 with a grant to COMAP to encourage collaborations using mathematics to serve the public interestinaddressingsocial,health,orenvironmentalchallenges;butithasbeenawhilesince the last MathServe article appeared. Associate Editor Kayla Blyman is in charge of this department and offers an introduction [Blyman 2021] and a first installment [Ordway 2021]. [Extracted from the article]