Market Observation Thesis
“Has anyone also considered that the price of everything getting so high has meant that M&S is now comparable hence people being more open to trying it. If Flash is £3.25 and M&S is £2 why wouldn’t people try it?”
Parity Dynamics: When national brand price hikes outpace own-brands, absolute price gaps shrink or reverse, triggering mass consumer trial.
Current Basket Total (Brand)
£5.25
£0.59 / 100ml
Sum of selected national brand items
Current Basket Total (Premium Own)
33.3% cheaper today
Projected Crossover Month
Month 0
Already Parity/Cheaper
Based on differential annual rates
Annual Household Parity Savings
£91.00
@ 1 purchase/wk
Cumulative difference over 12 months
Global Simulation Controls
8.0% / yr
0% (Stable)
15% (High)
30% (Hyper)
3.0% / yr
0% (Stable)
15% (High)
30% (Hyper)
12 Months
6 mos
18 mos
36 mos
Simulates volume reduction in brand items without changing shelf price, accelerating unit cost parity.
Model Methodology
Unit costs are volume-normalized per 100ml / 100g. Compounded monthly inflation curves map where national brands reach extreme price gaps or where premium lines undercut brand unit values.
Basket Price Trajectory & Parity Point
Comparing absolute basket cost over time (£ GBP)
National Brands
Premium Own-Brand (M&S)
Value Own-Brand
Chart showing projected monthly shelf cost based on current basket choices.
Interactive Basket Composer & Unit-Cost Matrix
Toggle active grocery items, adjust individual volumes and baseline prices to test specific supermarket comparisons.
| Active | Category | National Brand Item | Brand Price / Vol | Premium Own-Brand (M&S) | Premium Price / Vol | Value Own-Brand | Value Price | Unit Saving (%) |
|---|
Export Basket Evidence & Parity Report
Download formatted cost analysis, monthly projection series, and unit parity metrics for consumer research or reporting.
£5.25
Month 0