Pakistan, Oct. 10 -- Every time a street vendor counts his day's cash after a long day, every unregistered tailor busy stitching in a city bazaar, every builder who quietly pockets part of a contract off the books-these are the threads of what can only be described as Pakistan's invisible giant. It is an economy that evades measurement, dodges taxation, props up livelihoods, and simultaneously starves the state. No wonder this giant is invisible: the tools to measure it are crude, the political will to confront it is weak, and the policy prescriptions are half-hearted. Yet its footprint is enormous. Conservative estimates place Pakistan's informal economy at 30 to 40 per cent of GDP. Using the MIMIC estimation method, it was around 34.6 p...