Singaporeans are getting hot under the collar these days. But it’s not Credit Suisse (NYSE: CS) or Silicon Valley Bank that’s gotten under their skin. It’s chicken rice. It’s iced Milo. It’s sliced fish soup. The kind of daily staple that warms our hearts. Yes, I am talking about the research by the Institute of Policy Studies (IPS) comparing hawker food prices from over 800 food establishments islandwide. It’s the study that has the nation up in arms. [There’s an investing lesson here, I promise.] The curious case of chicken rice  Chicken rice sellers in Bishan were surprised to learn they have the unfortunate distinction of having the priciest dish in the country. For comparison, the IPS study found the average price for a plate of chicken rice is S$3.80. Bishan’s average price is S$4.26, or 12% more. Here’s the thing: if you think hawker food is all about price, you’re wrong....