Port Cluster: Fish or Warehousing?
A port town has 400 hectares of reclaimed land, a 12 MLD water allocation, 60 MW of power, and an 18 km rail spur. The fishing harbour lands 90,000 tonnes of fish a year, but 60% is trucked out unprocessed and spoils within 30 hours. Two proposals compete. Proposal A is a fish-processing and cold-chain park using 120 ha, 8 MLD water, 25 MW power, and 3,000 workers. Proposal B is a container warehousing and logistics hub using 300 ha, 3 MLD water, 40 MW power, and 1,200 workers. Proposal A needs uninterrupted power and a 5 km conveyor; B needs a wider road and 24-hour truck access. The town's unemployment rate is 14%, highest among women at 22%. Groundwater is saline and municipal water is rationed. The rail spur currently carries 40% of cargo.
1. Which proposal better fits the resource constraints? Use at least three quantitative comparisons in your answer.
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Comparison 1 - Land intensity. A uses 120 ha for 3,000 workers = 0.04 ha per worker. B uses 300 ha for 1,200 workers = 0.25 ha per worker. A is six times more labour-intensive per hectare, which matters where land is capped at 400 ha.
Comparison 2 - Water. A needs 8 MLD of the 12 MLD allocation (67%); B needs 3 MLD (25%). Water is the binding constraint because groundwater is saline and municipal supply is rationed. On water alone, B is safer.
Comparison 3 - Power and jobs per MW. A uses 25 MW for 3,000 jobs = 120 jobs per MW; B uses 40 MW for 1,200 jobs = 30 jobs per MW. A is four times more job-efficient per unit of power, but it also requires uninterrupted supply.
Judgement. A fits the employment problem better and addresses the 60% spoilage of fish; B fits the water constraint better. Because 60% of 90,000 tonnes is currently lost and female unemployment is 22%, A is the stronger development choice - but only if it recycles process water and secures reliable power. Without those conditions, B is the safer fit.
2. Explain two backward and two forward linkages each proposal would create, and judge which set is more likely to raise local incomes.
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Proposal A - fish processing.
Backward linkages: supply from the fishing harbour (boats, crew, ice plants), and demand for packaging, cold-store equipment and boat repair.
Forward linkages: chilled and frozen fillets to retailers, export buyers, restaurants and cold-chain transport.
Proposal B - warehousing and logistics.
Backward linkages: construction, truck repair, fuel supply, and shipping-line services.
Forward linkages: distribution to e-commerce, assembly plants, and wholesale traders.
Judgement. A is more likely to raise local household incomes because processing is labour-intensive, has a lower skill entry barrier, and commonly employs women - directly relevant to the 22% female unemployment rate. Its linkages are also rooted in the local harbour. B's linkages are real but often captured by national logistics firms and require capital-intensive skills; it may raise tax revenue and cargo throughput more than local wages. A therefore has the stronger inclusion case, provided water recycling prevents it from competing with drinking water.
3. What condition would make the rejected proposal viable?
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If A is chosen, B becomes viable when the road and rail constraints are removed and water is freed up. Specifically: widen the port road and provide 24-hour truck access; electrify or double the rail spur so it carries more than 40% of cargo; and confirm that A's water recycling releases at least 4–5 MLD. B also needs a tenant base that is not purely external, such as local wholesalers.
If B is chosen, A becomes viable only if a dedicated water source or a common effluent/recycling plant supplies its 8 MLD without drawing on municipal rationing, and if uninterrupted power is guaranteed through a dedicated feeder or captive solar. The 5 km conveyor must also be built, because without it the cold chain cannot move fish fast enough to prevent spoilage. In short, the rejected option becomes defensible when its binding constraint - water for A, road/rail access for B - is relaxed, not merely when land is available.