News & Guides
Season guides, division explainers and the latest on the National Economics Challenge and the China National Round (CNEC).
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When a Teammate Drops Out: NEC Roster, Substitution and Team-Continuity Rules
A teammate leaving mid-season is a rules problem, not a staffing one. What CEE published on substitutions, the two-original-members rule, and the swap that changes your division.
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NEC Eligibility Decoded: Grade Levels, Team Rules and Who Can Enter From China
Who actually qualifies for the NEC: grade-level ranges, the three divisions, team-of-4 composition rules, and how Chinese students enter via the official CNEC round.