Take any one of the five measures of economic performance discussed in the book in Topic 14 - gross domestic product, employment, the business cycle, price levels, or productivity, and work out business implications of that measure. In other words, try and figure out for example, what is the possible impact ofa nation's high GDP on a business's ability to generate profits; or how do low levels of unemployment or productivity or business cycles impact a single firm's ability to stay afloat. It's okay if you get more than one possible scenario or outcome for business profits - what's important is that you articulate all the possible linkages that you can think of between profits and your chosen economic indicator. Working out these linkages will give you a better appreciation of why you study economics as a business student.