Table 1 Regression variables
From: Estimating the contribution of infrastructure to national productivity in Europe
Description | Units | ||
|---|---|---|---|
1 | Y/L | GDP per capita | Millions of euros, 2005 chain-linked volumes per capita |
2 | s K | Investment share | % |
3 | N | Population growth | % |
4 | T | Time trend | 2005 = 0 |
5 | H | Human capital | % of adults achieving an upper-secondary or tertiary education |
6 | Tax | Ratio of tax receipts to GDP | % |
7 | Trade | Ratio of (exports + imports) to GDP | % |
8 | Elec | Electricity capacity per capita | MW per capita |
9 | Mway | Motorway length per capita | km per capita |
10 | Rail | Length of rail tracks per capita | km per capita |
11 | Road | Non-motorway length per capita | km per capita |
12 | Tel | Number of fixed-line and mobile telephone subscriptions per capita | # lines/subscriptions per capita |