Intertemporal versus interspatial comparison: Difference between revisions
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| The thing against which other things are compared || Base year || [[wikipedia:Numéraire|Numéraire]] country | | The thing against which other things are compared || Base year || [[wikipedia:Numéraire|Numéraire]] country | ||
|- | |- | ||
| || Time-reversal test || Country reversal test (bilateral) or base-country invariance (multilateral)<ref name="icrgp1982" />{{rp|71–72}} | | Symmetry in treatment of the base || Time-reversal test || Country reversal test (bilateral) or base-country invariance (multilateral)<ref name="icrgp1982" />{{rp|71–72}} | ||
|} | |} | ||
Revision as of 18:28, 12 November 2017
The following table examines intertemporal versus interspatial comparison in PPP calculation/index number theory. In particular, aspects of intertemporal comparisons have counterparts in interspatial comparisons, so the table catalogs these.
Comparison table
| Aspect | Intertemporal | Interspatial |
|---|---|---|
| How well the weights match the thing being compared[1]Template:Rp | Up-to-dateness | Characteristicity |
| Tendency of Paasche quantity indices to be lower than Laspeyres indices[2]Template:Rp | Gerschenkron effect | Own-weight effect |
| Ordering | Natural ordering by year (or other granularity of time periods) | No natural ordering (but some have devised orderings) |
| The thing against which other things are compared | Base year | Numéraire country |
| Symmetry in treatment of the base | Time-reversal test | Country reversal test (bilateral) or base-country invariance (multilateral)[2]Template:Rp |
See also
External links
References
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