Copper rallies 3% as the week opens up

Copper prices rose on Monday as the dollar fell against a basket of major rivals and amid optimism for global demand. 

Despite warning statements from the IMF about the state of the global economy this year, a spate of recent global data spurred some optimism about performance. 

Copper is a highly sensitive marker for the global economy, for its usage in many major industries such as energy and cars. 

Copper prices fell 2.8% to $4.02 a pound as of 15:27 GMT.