PPP = the ability to buy a basket of goods. So $1⁄day = ability to buy a loaf of bread, basically, or a pop tart from a vending machine
Public goods - defined by unlimitedness, or at least inability to buy and sell, like air, irrigation, roads
If it's excludable but noncompetitive, that's "club goods"
If it's competitive but nonexcludable, that's "common property goods"
CPIA - WB measure of quality of country's social and economic policies
Stand-bys - 18-month emergency plans
EFF's - 3-year extended fund facilities
Both heavily conditional emergency extra funds.