Table 1 shows an index of labour productivity per worker-day for an online retail distribution centre.
| Year | Index of labour productivity per worker-day |
|---|---|
| 2018 | 102.3 |
| 2019 | 104.5 |
| 2020 | 100.0 |
| 2021 | 96.8 |
| 2022 | 101.4 |
Which one of the following statements must be true?
The total volume of parcels processed was higher in 2019 than in 2020.
The distribution centre was operating at maximum efficiency in 2020.
Output per worker-day was higher in 2019 than in 2022.
The number of warehouse staff employed was lower in 2021 than in 2018.
156 exam-style questions on AQA A Level Economics 1.4 Production, costs and revenue, covering 1.4.1 Production and productivity, 1.4.2 Specialisation, division of labour and exchange, 1.4.3 The law of diminishing returns and returns to scale (A-level only), 1.4.4 Costs of production, 1.4.5 Economies and diseconomies of scale, 1.4.6 Marginal, average and total revenue, 1.4.7 Profit, and 1.4.8 Technological change (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.