As successive Human Development Reports (HDRs) have shown, most people in most countries have been doing steadily better in human development. Advances in technology, education and incomes hold ever-greater promise for longer, healthier, more secure lives. But there is also a widespread sense of precariousness in the world today—in livelihoods, in personal security, in the environment and in global politics. High achievements on critical aspects of human development, such as health and nutrition, can quickly be undermined by a natural disaster or economic slump. Theft and assault can leave people physically and psychologically impoverished. Corruption and unresponsive state institutions can leave those in need of assistance without recourse.

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http://hdr.undp.org/en/content/human-development-report-2014-summary