The phrase "aggregate party" is correct and usable in written English.
It can be used in contexts related to politics, data analysis, or any situation where multiple entities are combined into a single group or category.
Example: "The aggregate party of voters showed a significant shift in preferences during the last election."
Alternatives: "combined group" or "collective party".
This, of course, depends on the supposition that there is a non-controversial metric that allows us to aggregate the parties' utility functions.
Netflix's current position as the dominant force in global film/TV stemmed from its own evolution from solely aggregating third-party content to aggressively investing in its own Originals.
Pandora aggregates third-party content using its own recommendation engine that allows users to create personalized music channels and stream songs in the style of whatever artist they choose.
By making the third parties aggregate the reports for us, it saved us that hassle and money.
Presidential campaigns have also sought to have donors channel their maximum aggregate contribution to parties and PACs through the joint fundraising committee.
While Facebook feels comfortable with the integrity of its data sourcing within the first two categories, it feels less settled about dipping into these aggregate pools of third party data.
April 2013 — Facebook launches Partner Categories: Further enriching the capabilities of its ad targeting platform by linking up with major data broker companies which hold aggregate pools of third party data, including information on people's offline purchases.
In this setting n parties, each holding some sensitive data, wish to compute some aggregate statistics over all parties' data with or without a centralized coordinator.
The site Party Time aggregates conversations about the elections and graphically represents who is getting the most buzz online.
On the aggregate global level, the Parties themselves perceive that net LULUCF emissions will increase over time.
