Another challenge to Harare's economy is the persistent emigration of highly educated and skilled residents to the United Kingdom, Australia, Canada, the Republic of Ireland and New Zealand, largely due to the economic downturn and political unrest. The city's brain drain, almost unprecedented compared to other emerging markets, has led to the decline of a local entrepreneurial class, an overstretched and declining middle class and a dearth of employment opportunities outside the informal and public sector. In addition, the city's working class residents are increasingly moving to nearby South Africa and Botswana, though they are readily replaced by less well off rural migrants. However, despite over a decade of neglect, the city's infrastructure and human capital still compares favorably with cities in other parts of Africa, and Latin America. It remains to be seen whether the current government can entice its young, diverse and well educated Zimbabwean diaspora numbering some 4 to 7 million people, to invest in the economy, let alone consider returning.