Research Article
Decision-Making Optimization of Risk-Seeking Retailer Managed Inventory Model in a Water Supply Chain
Table 1
The recently updated forecasts for world Gross Domestic Product (GDP) and trade.
| | Real GDP (% change) | Trade volume (% change) | Elasticity (ratio) | 2020 | 2021 | 2020 | 2021 | 2020 | 2021 |
| Forecast for WTO Trade (April 2020) | Optimistic scenario | −2.5 | 7.4 | −12.9 | 21.3 | 5.3 | 2.9 | Pessimistic scenario | −8.8 | 5.9 | −31.9 | 24.0 | 3.6 | 4.1 | World Economic Prospects of the IMF (April 2020) | −3.0 | 5.8 | −11.0 | 8.4 | 3.6 | 1.4 | Global Economic Outlook of the World Bank (May 2020) | −5.2 | 4.2 | −13.4 | 5.3 | 2.6 | 1.3 |
| Economic Prospects of the OECD (June 2020) | Single-hit scenario | −6.0 | 5.2 | −9.5 | 6.0 | 1.6 | 1.1 | Double-hit scenario | −7.6 | 2.8 | −11.4 | 2.5 | 1.5 | 0.9 |
| Memo terms | IMF GDP set at market exchange rate | −4.2 | 5.4 | −11.0 | 8.4 | 2.6 | 1.6 | World Bank GDP set at purchasing power parity | −4.1 | 4.3 | −13.4 | 5.3 | 3.3 | 1.2 |
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