Acknowledgements Financial support from the Leverhulme Trust (grant no. F114/BF).Productivity Levels and Dynamics: UK Service Sector Firms 1988-1998Sourafel Girma,Richard Knellermag(2014)引用 23|浏览4暂无评分AI 理解论文溯源树样例生成溯源树,研究论文发展脉络Chat Paper正在生成论文摘要