Dhaka, Sept. 27 -- Prices of edible oil have gone up again in the capital's retail markets, while vegetables remain at unusually high levels, with traders and analysts blaming road extortion, unchecked middlemen, and weak market monitoring for the persistent squeeze on both consumers and farmers.

A survey at Rampura, Malibagh, and other city markets on Friday found that loose soybean and super palm oil prices have risen by about Tk 5 per litre over the past three to four days. Loose soybean oil is now selling at Tk 170-172 per litre, up from Tk 169 earlier this week, while super palm oil is priced at Tk 155-160, compared to Tk 150 just days ago.

Retailers say the rise comes despite the government's rejection of a proposal to raise soybean...