In the UK there has been much investment in energy saving: loft insulation; double glazing; new boilers for old. In Thailand consumers are routinely scammed by family cartels that collaborate to fix prices and wrangle to divvy out market shares with no interference. As an example look at the price of underarm deodorants which are often 500% higher than the Aldi price (though these don't have the armpit whitening facility so prized by two-toned Thais.)