News & Guides
Season guides, division explainers and the latest on the National Economics Challenge and the China National Round (CNEC).
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NEC Economic News Analysis: Separating a Data Release From a Policy Explanation
A practical guide for NEC students on distinguishing raw economic data from policy interpretation, featuring worked teaching illustrations and diagnostic tools to avoid common reasoning errors in economic news analysis tasks.
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NEC Opportunity Cost: Distinguishing Sunk Costs From the Next Best Alternative
A focused guide to the specific reasoning failure that trips up NEC competitors: confusing what you’ve already spent with what you must give up next. Two worked teaching illustrations, a diagnostic table, and a practice decision to sharpen your Critical Thinking Round preparation.
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NEC Elasticity Calculations: Choosing the Base Before Comparing Percentage Changes
A teaching illustration on avoiding base-selection errors in elasticity percentage-change calculations, with worked hypothetical examples and a self-check diagnostic for NEC preparation.