Variables used to test Wagner’s law
| Version of Wagner’s law | Year | Dependent variable (Based on Wagner’s law) | Independent variable (Based on Wagner’s law) | Expected causal relationship | Source of data |
|---|---|---|---|---|---|
| Pryor | 1969 | LGC | LGDP | LGDP → LGC (Wagner’s law) LGC → LGDP (Keynesian hypothesis) | World Bank, WDI |
| Goffman | 1967 | LG, but LGC is used as proxy | LGDPP | LGDPP → LGC (Wagner’s law) LGC → LGDPP (Keynesian hypothesis) | |
| Gupta | 1968 | LGP, but LGCP is used as proxy | LGDPP | LGDPP → LGCP (Wagner’s law) LGCP → LGDPP (Keynesian hypothesis) | |
| Musgrave | 1969 | LGGDP, but LGCGDP is used as proxy | LGDPP | LGDPP → LGCGDP (Wagner’s law) LGCGDP → LGDPP (Keynesian hypothesis) | |
| Mann | 1980 | LGGDP, but LGCGDP is used as proxy | LGDP | LGDP → LGCGDP (Wagner’s law) LGCGDP → LGDP (Keynesian hypothesis) |
| Version of Wagner’s law | Year | Dependent variable | Independent variable | Expected causal relationship | Source of data |
|---|---|---|---|---|---|
| Pryor | 1969 | LGC | LGDP | LGDP → LGC | World Bank, WDI |
| Goffman | 1967 | LG, but LGC is used as proxy | LGDPP | LGDPP → LGC | |
| Gupta | 1968 | LGP, but LGCP is used as proxy | LGDPP | LGDPP → LGCP | |
| Musgrave | 1969 | LGGDP, but LGCGDP is used as proxy | LGDPP | LGDPP → LGCGDP | |
| Mann | 1980 | LGGDP, but LGCGDP is used as proxy | LGDP | LGDP → LGCGDP |
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