Please describe the following key success factors that have resulted in Costco's outstanding performance

Improved member recruitment and retention everaging the Kirkland Signature Brand Product range restrictions to achieve operational excellence Application of the No-Frills Wholesaling Approach Respond to local consumer needs and wants Implement human resource policies to improve employee retention

Meanwhile, please describe the following major challenges Costco faces Increasing the share of revenue from international operations in total revenue Identifying, entering, and expanding into new markets to diversify risk ncreased investment in multi-channel retailing to capture technology-savvy consumers