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In a developed economy there are likely to be few external effects from road investment; and secondary benefits (for example, to final consumers of goods transported) can be assumed to be already covered by benefits to traffic.
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Stored only when both papers are in the corpus — 31 citations exist upstream.
Papers that cite the same references — the relational fallback while embeddings are still backfilling.
Imported from OpenAlex (CC0) — nothing here is generated.