Although in the direct effect institution has a negative effect on economic growth, in the overall effect institution has a positive effect on economic growth.

尽管在直接效应中，制度因素对经济增长起反向作用，但在总效应中，制度对经济增长起正向作用。

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It will play a vital role in improving the overall effect of oil development, and it will have important guiding and economic significance in enhancing the oilfield development level.

对提高油田的整体开发效果将起着至关重要的作用；对提高油田的开发水平将具有重要的指导意义和经济意义。

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In terms of spurring economic investment overall, even the independent Congressional Budget Office in a January 2010 report said the effect of these tax deductions are diminished when the economy is weak.

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