English Summary: This thesis consists of three chapters in development and conflict economics, focusing on the impact of occupation on Palestinian economic development and policy. The first chapter, Operation Protective Edge: The Impact of the damages of Israeli bombing on localities in Gaza, examines the impact of the damages on the localities’ poverty rate and household expenditures using different techniques to account for the non-linear and spatial dependence impact of these damages on the outcome variables. In the second chapter, The Special Negative Economic Zones in the West Bank Area C: the Unrealised Potential, the impact of the share of Area C, the negative special economic zone in the West Bank, on the total locality household expenditures across the West Bank is explored using two cross sectional data sets of 457 localities in 10 governorates. The third chapter, Integrated Simulation Framework - II Model for Palestinian Economic Policy, is a Klein-type demand-side model. It also goes beyond the standard demand-side approach by integrating the supply side of the economy in its structure. This model could help Palestinian policy makers in assessing the impact of different policies and shocks. The model was used to assess the impact of the Covid-19 shock on the Palestinian economy and predicted that the impact would be significant and close to that of the Second Intifada.