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Table 2 Median price, purchases, expenditure and expenditure shares for households in name- and home-brand food groups (excluding zero purchases)

From: Impact of taxes on purchases of close substitute foods: analysis of cross-price elasticities using data from a randomized experiment

Aggregate food categories

Name- and home-brand food groups

Number of shops (% of shops included compared to overall shops)

Price per 100 g in NZ$

Purchased quantity in grams

Expenditure in NZ$

Median

IQR

Median

IQR

Median

IQR

Beverages

Name-brand

3189 (75%)

0.43

0.91

2000

3226

10.13

12.04

Home-brand

2447 (58%)

0.19

0.06

2000

2000

4.89

4.69

Grains

Name-brand

3474 (82%)

0.81

0.48

1400

1555

10.74

11.98

Home-brand

2619 (62%)

0.30

0.16

1500

1890

4.71

5.73

Snacks

Name-brand

3390 (80%)

1.76

0.72

647

870

10.99

13.46

Home-brand

2021 (48%)

1.16

0.96

390

700

5.17

5.05

  1. Abbreviations: IQR Interquartile Range