Food price subsidies are a prevalent means by which fiscal authorities may counteract food price volatility in middle-income countries (MIC). We develop a DSGE model for a MIC that captures this key channel of a policy induced price smoothing mechanism that is different to, yet in parallel with, the classic Calvo price stickiness approach, which can have consequential effects for monetary policy. We then use the model to address how the joint fiscal and monetary policy responds to an increase in inflation driven by a food price shock can affect welfare. We show that, in the presence of credit constrained households and households with a significant share of food expenditures, a coordinated reaction of fiscal and monetary policies via subsidized price targeting can improve aggregate welfare. Subsidies smooth prices and consumption, especially for credit constrained households, which can consequently result in an interest rate reaction less intensely with subsidized price targeting compared with headline price targeting. 1

The two episodes of food price surges in 2007 and 2011 have been particularly challenging for developing and emerging economies' central banks and have raised the question of how monetary authorities should react to such external relative price shocks. We develop a new-Keynesian small open-economy model and show that non-food inflation is a good proxy for core inflation in high-income countries, but not for middle-income and low-income countries. Although, in these countries we find that associating non-food inflation and core inflation may be promoting badly-designed policies, and consequently central banks should target headline inflation rather than non-food inflation. This result holds because non-tradable food represents a significant share in total consumption. Indeed, the poorer the country, the higher the share of purely domestic food in consumption and the more detrimental lack of attention to the evolution in food prices.

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Based on an original de facto classification of the exchange rate regimes, this paper provides strong evidence that hybrid inflation-targeting frameworks, in which the exchange rate is managed, deliver a stronger nominal anchor, as they better resisted the 2007-2008 inflation shock. Highlights: • Two frameworks for inflation-targeting in emerging economies: inflation-targeting strategies with free-floating exchange rates and inflation-targeting strategies with managed floating. • Inattention to the Taylor Principle by both of the two groups during the 2007-2008 price shock. • IT strategies with managed floating strongly associated with a weaker inflation surge, less deviation from the target, and less credibility loss.