This paper studies the benefits, in terms of reliability and frequency of poverty statistics, of conducting a hybrid survey that collects non-consumption data from all surveyed households and consumption data from only a small subsample. Collecting detailed consumption or income data for the...

The cost of energy in Eastern Europe and Central Asia, as elsewhere, is an important policy issue, as shown by the concerns for energy affordability during the past harsh winter. Governments try to moderate the burden of energy expenditures that is experienced by households through subsidies to...

India - home to one of the world's largest populations without electricity access - has set the ambitious goal of achieving universal electrification by 2017. 311 million people, a quarter of its population, remains without power, despite substantial efforts to increased affordable access for...

The Millennium Development Goal of halving the incidence of extreme poverty from its 1990 level will be achieved in 2015, and the international development community is now moving to a new goal of ?ending extreme poverty.? However, the data needed to monitor progress remain severely limited....

The World Bank has recently adopted a target of reducing the proportion of population living below US$1.25 a day at 2005 international prices to 3 percent by 2030. This paper reviews different projection methods and estimates the global poverty rate of 2030 modifying Ravallion (2013)'s approach...

We consider branching random walks in d-dimensional integer lattice with time-space i.i.d. offspring distributions. This model is known to exhibit a phase transition: If d=3 and the environment is "not too random", then, the total population grows as fast as its expectation with strictly...

We consider a one-dimensional random walk which is conditioned to stay non-negative and is "weakly pinned" to zero. This model is known to exhibit a phase transition as the strength of the weak pinning varies. We prove path space limit theorems which describe the macroscopic shape of the path...

The earlier work on corruption reform often argues that a broader set of reforms be implemented. The main purpose of the paper is to examine the validity of this argument by formalizing the analysis of the interactions of procurement reforms. The model not only supports well-known interaction...

Access to markets and social services is a major determinant of economic status and welfare. Measurement of access is therefore of great importance for policy analysis and planning of interventions. The objective of this article is to expose readers to a new way of measuring and visualising...