new york new york city mayor bill de blasio present 82.1 billion preliminary budget city 2016-17 financial year thursday note city strong economic position strike cautionary note economic outlook new york city sit center one big regional economies world see strong growth since recession follow 2007-09 financial crisis allow officials build budget reserve doubt remain whether growth continue lot real challenge come make us uncertain economic future de blasio say presentation city hall new york city protect ourselves mayor highlight concern china economy question mark global growth current plunge u.s. stock market terrorism threats city city add 213,000 job 2014 2015 strong two-year gain recent history number job time high 4.2 million yet de blasio say economy may overdue recession point devastate effect last recession budget nearly billion budget reserve include 3.4 billion retiree health benefit billion general reserve case city go alone recession de blasio say total budget represent small increase previous year 81.7 billion de blasio left-leaning democrat take office start 2014 highlight signature program raise minimum wage 15 per hour city workers initiative cost city 115 million fully implement also outline plan tackle city homelessness problem millions dollars shelter repair prevention initiatives program move people shelter permanent house dean fuleihan city budget director say budget balance current come financial year say billion save 2016-17 budget come reductions debt service save agency spend city public pension system consume large chunk revenues increase mortality projections mean city pay additional 600 million bring city total annual pension bill 9.4 billion new york city mayor present 82 billion budget warn challenge