Economic Impact Assessment: Visitor Spending, Leakage, Multipliers, Jobs per Spend, Additionality & Net Local Impact

What you'll build

What you will be able to do

Each lab ends with a concrete result that you build yourself and the checker confirms, cell by cell.

• Turn a fictional visitor survey into visitor-days and spending by segment, add the organiser's spending in the region and find the total direct spending that every later step of the impact study starts from.
• Split the visitor spending into the part that stays in the region and the leakage, category by category, and compute the weighted retention rate for the whole festival.
• Follow the retained spending through rounds of local re-spending, find the multiplier the rounds converge to, and apply a fictional Type I / Type II multiplier table sector by sector.
• Turn total output into jobs supported and household income with fictional sector ratios, and convert the organiser's mixed headcount into full-time equivalents.
• Remove deadweight and displacement from each visitor segment, compute the additionality ratio and combine it with retention and the multiplier into the net local output impact.
• Turn the gross jobs of four fictional programmes into net jobs, compute the public cost per net job, rank the programmes and name the most cost-effective one.
• Model how a fictional programme's net impact builds up and fades over eight years, total it, discount it to a present value with NPV and compare it with the public cost.
• Compute the low case of the impact, find the visitor number at which the festival just meets a fictional funding hurdle, measure the cushion against the central case and chart the three scenarios.