The sudden resignations of key economic ministers in the Palang Pracharath Party (PPRP) are a signal of Prime Minister Prayut Chan-o-cha ‘s dwindling negotiating power in the ruling coalition, which may prevent him from making his way into the upcoming cabinet reshuffle, one observer says. Somjai Phagaphasvivat, a political scientist at Thammasat University, said the latest developments showed the PPRP …