Margin Improvement: Margins in the business remained beneath pressure, even previous to the economic downturn for the industry as an entire, returns on capital have continued under the cost of capital. Previous to the falls in the second half of the year 2008, the rise in input costs (That is, raw materials, chemicals and energy) and other operating costs had been unalterable and the inability of the industry to recover such costs via sales price rises reflects disaggregated decision-making in the industry, enduring industry over-capacity and end user resistance to raise price.