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| | Data & Research - Report Details |
 | | They distinguish three sources of agglomeration economies: 1) At the firm level, from improved access to market centers. |
 | | The input demand framework they use in analysis, permits the production function to be estimated jointly with a set of cost shares, and, makes allowances for non-constant returns to scale, and for agglomeration economies to be factor-augmenting. |
 | | Their results indicate that access to markets, through improvements in inter-regional infrastructure, is an important determinant of firm-level productivity, whereas the benefits of locating in dense urban areas, do not appear to offset the associated costs. |
| econ.worldbank.org /view.php?type=5&id=2382 (445 words) |
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