ell against the dollar.Sydney at No. 19 remains the costliest city in Australasia, far ahead of Melbourne (No. 74) and Brisbane (No. 99).The cheapest cities in the world are Paraguay's Asuncion, Zimbabwe's Harare, Buenos Aires, Manila, Pakistan's Karachi, India's Bangalore and Uruguay's Montevideo.To give a sense of just what life costs in various cities, Mercer priced out the cost of a two-bedroo