Concerns that shocked us decades ago have not disappeared but instead, simply transformed. For Nestlé and the rest of the global food industry, the baby milk scandal has grown up rather than gone away, writes Mike Muller, the author of the 1974 baby milk scandal report. Be it obesity, diabetes or heart disease, the industry now stands accused of harming entire nations, not just babies.
From the food industry's responsibilities, to the ethics of tax havens and ways in which western consumerism is destroying Chinese wellbeing, here we look at the five most popular pieces that have featured on the social impact hub in 2013.

1. Nestlé baby milk scandal has grown up but not gone away
Obesity shows that better standards in the food industry must be enforced, wrote the author of the 1974 baby milk scandal report

2. Wanted: truly innovative sustainable business models
Three reasons to focus on your structure, not just your products or processes, from Ryan Whisnant

3. How West's throwaway culture destroys basic freedoms in China
A moment of deep shock as author Amy Larkin finds out how western consumerism is destroying Chinese wellbeing

4. Happiness: the next big business metric?
Happiness is gaining popularity as a measurement of success for governments – and for some businesses, including Zappos, Southwest and BT

5. Avoiding tax may be legal, but can it ever be ethical?
Rather than hiding behind the business case for tax avoidance, companies need to be transparent about their tax planning
Get involved
Let us know about your favourite piece of social impact content from 2013 - was there a piece that you feel has a particularly strong message or gave you a fresh perspective? Did you find one article especially useful professionally? We'd love to hear your thoughts in the comments below or tweet us @GuardianSustBiz.
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