However logistics provider Toll Holdings ( TOL ) warned of a challenging year ahead, its share price dropped 0.4pct to $4.79. Australia's richest person, Gina Rinehart, today warned that the resources sector could lose market share to other countries if new exploration incentives are not introduced and costs continue to rise. The Reserve Bank focuses on three "underlying" price measures - trimmed mean, weighted median and CPIX (CPI less fruit, vegetables, petrol and deposit and loan facilities).