Version 8.52 (September 2nd, 2025)

Version 8.52 (September 2nd, 2025)

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You can download IFs Version 8.52 at IFs 8.52.

Interface Updates

• Added new Macro and Meso Categories to Flex Displays, also added new filters.
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  New Flex Displays with Macro and Meso Categories

• Fix to formulas with repeated terms, for example: Probability(Cluster_0)=e^(-0.6128+(1.8340*a)+(2.2198*b)+(1.7760*c)+(0.7788*(d/e))-(2.6070*f))/(e^(-0.6128+(1.8340*a)+(2.2198*b)+(1.7760*c)+(0.7788*(d/e))-(2.6070*f))+e^(-0.9064-(1.4878*a)-(2.5714*b)-(1.9723*c)-(1.3653*(d/e))+(2.2223*f))+e^(-0.7270-(0.3462*a)+(0.3516*b)+(0.1963*c)+(0.5865*(d/e))+(0.3847*f))), this was producing repeated terms in the selection box:

• Removing double counting from SAM, variables with Total were being double counted.

Model Updates

• contiguity parameter was not working for groups, like contiguity(World, World).
• Added limit to bilateral trade, it was going negative when tariffs get to 100%.
• Added Politically Relevant Dyad Security Count (PRDSEC):
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Data Updates

• IFsVar new Descriptions, new SubModule Names and Segment Names.
• Added new Variable Lists to have full list available in Flex Displays.
• 25 Tables inserted & updated in IFsHistSeries
• 3 new tables, country-year distance to development pattern cluster centers.  
• 10 new tables, score and counts Character of Bilateral Interaction in the International System.
• 8 new tables, civil war onset and its impact from Pardee's Civil War data.
• 2 new tables, sovereignty states and geographic distance.
• 2 tables updated from WDI, urban population and foreign population.
• 34 Tables inserted & updated in IFsHistSeries
• 3 new tables, country-year distance to development pattern cluster centers.  
• 10 new tables, score and counts Character of Bilateral Interaction in the International System.
• 8 new tables, civil war onset and its impact from Pardee's Civil War data.
• 2 new tables, sovereignty states and geographic distance.
• 2 tables updated from WDI, urban population and foreign population.
• 7 new tables, poverty tables from PIP at $2021
• 2 new tables, GDP2021 & GDP2021PCPPP