Yes, the responsibilities of being a parent typically fall more heavily on the woman in a relationship.

FORBES: The New York Times Declares War...

But they tend to fall more heavily on the poor than the rich.

ECONOMIST: Governments will need to find new ways of raising tax

Under a consumption tax, the burden of taxation would probably fall more heavily on poorer Americans, since most capital, whose returns would not be taxed, is held by the rich.

ECONOMIST: George Bush's tax agenda: Handing it back | The

Despite the fact that pro-poor services seem to have been affected least, the evidence is that, because poorer communities are more reliant on council services, the impact of cuts will fall more heavily on disadvantaged people.

BBC: Blunt speaking on town hall cuts

Small-cap stocks have rallied more strongly than large-caps this year, despite their historically weaker ability to avoid taxes and the likelihood that an end-of-year repeal of the Bush tax rate cuts would fall more heavily on entrepreneurial small companies.

FORBES: The Corporate Tax Debate? Ignore It and Think About Your Taxes

Once again the snow began to fall heavily and conditions became even more difficult for the players.

BBC: Saints and Hibs face replay

In the options markets Tuesday, where traders predicted the demise of Bear Stearns in March, more than 300, 000 options traded in Lehman, heavily favoring bets on a fall in the stock.

FORBES: Lehman Shares Swoon On Write-Down Concerns

Under the current system, cars fall into 13 payment bands depending on their level of carbon emissions, with more polluting vehicles taxed more heavily.

BBC: UK Politics