work life balance

i was writing a paper on,"Work -life balance" for an international conference. I am always startled at the analysis and learning points that i derrive from the pattern of my own experiences.
It is quite evident that work life balance and productivity are positively correlated.
On the other hand work-life imbalance and stagnation as wellas low levels of innovation are also positively correlated.
Organizations that tend to emphasize late working continuously reap negative outcomes such as low productivity,low motivation levels and a lackadaisical attitude towards improvement and work.