Business economists are sounding some sour notes about Trump administration policies, from trade to immigration to the budget, while expecting the short-term boost to growth from Republican tax cuts to lessen over time. SEE MORE President Donald Trump prodded China to offer more at the bargaining table as the two countries prepared for their first major negotiation in more than two months in an effort to head off an all-out trade war. SEE MORE US August contract styrene-butadiene rubber (SBR) prices rose on higher feedstock costs, while spot prices fell amid ample supply and pressure from imports. SEE MORE The European polystyrene (PS) market remains unfazed by upstream woes amid subdued activity due to summer holidays, with contract negotiations for August barely moving forward. SEE MORE Ethylene dichloride (EDC) prices in northeast Asia are at their highest in 16 months amid short spot supply and uncertainty caused by the US-China trade tensions. SEE MORE