Challenges for long-term industry restructuring in the Upper Silesian Coal Basin: What has Polish coal mining achieved and failed from a twenty-year perspective?

It can be concluded from the research results that in more than twenty years of industry restructuring in Poland, only a portion of the restructuring aims have been achieved. Importantly, these aims include reductions in employment and increases in productivity but only partial and periodic increases in efficiency. However, many of the collieries have not accomplished a sustainable improvement in efficiency.