Nigeria, Aug. 28 -- The essence of Nigeria politics is driven by a political economy model in which the formal economy of the country has a separate existence that is subordinated to a second more significant economic model in which the real drivers of the are the political actors who inject and subsequently extract liquidity into and from the system. My good friend S. A. Ndanusa explains it in the following manner. Nigeria has two economies. There is the official economy monitored by the National Bureau of Statistics. That is where we find inflation, GDP, unemployment, exchange rates and enough decimal points to persuade us that our suffering has been carefully calculated. Then there is the economy of politics. This second economy is not...