A popular concept that is used both in macro economic theory, as well as in micro economic theory is that of marginal change.

在宏观经济理论以及在微观经济理论中有一个流行的概念是边际变化。

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The percentage of unemployed new graduates in the UK was 8.6% this year, a marginal change from last year's 8.5%.

BBC: Scotland 'attracting graduates'

Regional workforce figures show that during the same period there was only a marginal change in the numbers of district nursing staff across the region.

BBC: RCN's East Anglia survey shows 'fewer district nurses'

First, though lower income taxes are generally economically better than higher, no recession ever was kicked off primarily by an incremental change in marginal income tax rates.

FORBES: The 'Cost' Of Cuts