BEGIN:VCALENDAR VERSION:2.0 PRODID:-//jEvents 2.0 for Joomla//EN CALSCALE:GREGORIAN METHOD:PUBLISH BEGIN:VTIMEZONE TZID:America/New_York BEGIN:STANDARD DTSTART:20241103T010000 RDATE:20250309T030000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 TZNAME:America/New_York EST END:STANDARD BEGIN:STANDARD DTSTART:20251102T010000 RDATE:20260308T030000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 TZNAME:America/New_York EST END:STANDARD BEGIN:STANDARD DTSTART:20261101T010000 RDATE:20270314T030000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 TZNAME:America/New_York EST END:STANDARD BEGIN:STANDARD DTSTART:20271107T010000 RDATE:20280312T030000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 TZNAME:America/New_York EST END:STANDARD BEGIN:STANDARD DTSTART:20281105T010000 RDATE:20290311T030000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 TZNAME:America/New_York EST END:STANDARD BEGIN:DAYLIGHT DTSTART:20240401T104500 RDATE:20241103T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20250309T030000 RDATE:20251102T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20260308T030000 RDATE:20261101T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20270314T030000 RDATE:20271107T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20280312T030000 RDATE:20281105T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT UID:1a57cd4eceb1d93cc444cbfc0a2e5515 CATEGORIES:Symmetric Functions & Probability Theory Seminar CREATED:20250331T110254 SUMMARY:Simultaneous elections make single-party sweeps more likely LOCATION:Hill 705 DESCRIPTION:
Date: 04/02/2025

Speaker< span style="font-variant: normal;">: Siddhartha Sahi (Rutgers)

Title:  ;Simultaneous elections make single-party sweeps more likely

Abstract: In a country with multiple elections , it may prove economically expedient to hold some or all of them on a comm on polling date. We show that such a decision will bring about a systemic c hange at the political level;  an increase in the simultaneity of poll ing increases the likelihood that  a single party wins all the electio ns.

Our result holds unde r fairly general conditions and we discuss its applicability to the two mos t common real world electoral systems, namely "first-past-the-post" (most v oters) and "party list proportional representation" (most countries). In th e course of our analysis, we obtain a slight generalization of the Harris c orrelation inequality for monotone functions on the Boolean lattice.

This is joint work with Pradeep Dubey (Center for Game Theory, Stony Brook).

The talk will be elementary, self -contained, and suitable for a general audience.

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Date: 04 /02/2025

Speaker: < a href="https://sites.math.rutgers.edu/~sahi/" target="_blank" rel="noopene r" style="color: inherit; text-decoration: none;">Siddhartha Sahi (Rutgers)

Title: Simultaneous elections make single-party s weeps more likely

A bstract: In a countr y with multiple elections, it may prove economically expedient to hold some or all of them on a common polling date. We show that such a decision will bring about a systemic change at the political level;  an increase in the simultaneity of polling increases the likelihood that  a single p arty wins all the elections.

Our result holds under fairly general conditions and we discuss its app licability to the two most common real world electoral systems, namely "fir st-past-the-post" (most voters) and "party list proportional representation " (most countries). In the course of our analysis, we obtain a slight gener alization of the Harris correlation inequality for monotone functions on th e Boolean lattice.

This i s joint work with Pradeep Dubey (Center for Game Theory, Stony Brook).

< p dir="ltr" style="margin: 12px 0px 0px; outline: none; position: relative; color: #212121; font-size: 11pt; font-style: normal; font-weight: 400; fon t-family: Lato, sans-serif; line-height: 1.6667; padding-bottom: 0px; lette r-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-tr ansform: none; widows: 2; word-spacing: 0px; white-space: normal;">The talk will be elementary, self-contained, and suitable for a general audience. CONTACT:Siddhartha Sahi DTSTAMP:20260829T200337 DTSTART;TZID=America/New_York:20250402T104500 DTEND;TZID=America/New_York:20250402T234500 SEQUENCE:0 TRANSP:OPAQUE END:VEVENT END:VCALENDAR