1. Even pessimists like Robert Gordon, an economist, expect this burst of technological investment to bring about faster productivity growth, which means higher wages.

bring about 导致；引起

Interest-rate cuts have failed to bring about economic recovery

利率下调没有带来经济复苏pbL]mz,X;+U。

2. If they do, workers will have the confidence and bargaining power to experiment and negotiate for themselves.

bargaining power 讨价还价的能力

Also, this could give consumers more bargaining power when buying diamonds.

此外，此举可能使消费者在购买钻石时享有更大的议价权X~s7kAl3Ie。