To analyze the effect of an increase in the quantity or quality of public investment on growth, this paper extends the World Bank?s Long-Term Growth Model (LTGM), by separating the total capital stock into public and private portions, with the former adjusted for its quality. The paper presents...

Ghana has experienced a decade of solid and exceptionally high growth. Between 2005 and 2015, income nearly doubled. This paper analyzes the factors driving this impressive growth performance, using tools such as structural change decompositions and growth regressions. For the comparative...

This paper analyzes the Republic of Korea's rapid and sustained growth experience for the past six decades from the perspective of the neoclassical growth model (the workhorse model of the World Bank?s Long Term Growth Model (LTGM) project). Overall, the sources of Korea's growth were balanced...

Ethiopia has experienced a growth acceleration over the past decade on the back of an economic strategy emphasizing public infrastructure investment and supported by heterodox macro-financial policies. To analyze the country?s growth performance during 2000?13, the paper employs a neoclassical...

This paper reviews dynamic general equilibrium models in order to collect insights on the interaction between economic growth and environmental issues. The authors discuss the Ramsey model and extend it for natural resource inputs and pollution, as well as for endogenous technical change. Green...

This paper reviews the evidence on the importance of human capital for macro-economic development. Through the lens of a simple aggregate production function, human capital might increase output per capita by directly entering in the production process, incentivising the accumulation of...

Students around the world are going to school but are not learning -- an emerging gap in human capital formation. To understand this gap, this paper introduces a new data set measuring learning in 164 countries and territories. The data cover 98 percent of the world's population from 2000 to...

This paper offers the first evidence on the prevalence of a central actor in modern growth theory?the engineer. Using newly collected sub-national, and international data as well as historical case studies, it then argues that differences in innovative capacity, captured by the density of...

The challenge of sustaining economic growth over the long term is one that only a few countries have been able to surmount. Slowing momentum in countries like Malaysia and Thailand has led analysts and policy makers to consider what it would take to lift them out of middle-income status, where...

This paper presents an analytical framework that captures the informational problems and trade-offs that policy makers face when choosing between public goods (for example, infrastructure) and industrial policies (for example, firm- or sector-specific subsidies). After a discussion of the...