Matching in community-based organizations

Using a rich dataset from West Africa, we examine the household characteristics associated with membership in community-based organizations (CBOs). We find that on average it is the more fortunate members of rural society who belong in CBOs. In Senegal, the dominant criterion is land ownership. In Burkina Faso it is age and family ties with village authorities. Ethnicity plays a role as well: CBO membership is less likely for ethnic groups that traditionally emphasize livestock raising. Next we look for evidence of assortative matching along multiple dimensions, using an original methodology based on dyadic regressions. We find robust evidence of positive assorting by physical and ethnic proximity as well as by wealth and household size. Along certain dimensions, donor-sponsored CBOs are less elitist and more inclusive. But the reverse is true for other dimensions, particularly in Burkina Faso.     

Natural Resources and Missing Inputs in International Productivity Comparisons*

Standard theory for cross-country productivity comparisons assumes all countries use the same factor inputs in production. This assumption is violated when including natural resources, such as oil, gas and gold, because countries do not extract the full set of resources. In this paper we propose a solution by viewing it as a “missing goods” problem and assigning missing inputs a reservation price equal to the world resource price. We show that this has a substantial impact on relative productivity levels for countries heavily reliant on natural resources for generating their income. Under our new productivity measure, resource-rich countries are no longer uncommonly productive.     

Response of inflation to shocks: New evidence from Sub-Saharan African countries

In this paper, we investigate whether or not the inflation rate of 17 Sub-Saharan African countries can be modelled as a stationary process. We achieve this goal through using univariate and panel stationarity tests for data over the period 1966 to 2002. We use the Kwiatkowski, Phillips, Schmidt and Shin (KPSS, 1992) univariate test and allow for multiple structural breaks. We find that except for Burkina Faso, Burundi and Gambia, the inflation rate is stationary for the rest of the 14 countries. We then apply the panel version of the KPSS test, developed by Carrion-i-Silvestre et al. (2005), which accounts for multiple structural breaks. We find strong evidence of panel stationarity of the inflation rate. However, for a panel consisting of Burkina Faso, Burundi and Gambia, we could not find evidence that the inflation rate is stationary.     

Capital flows and economic growth revisited: evidence from five Sub-Saharan African countries

The study examines the differential effects of capital flows on economic growth in five Sub-Saharan African (SSA) countries over the period 1970–2014. Using the autoregressive distributed lag methodology, the findings show that in the long-run capital flows (i.e. foreign direct investment (FDI), aid, external debt, and remittances) have different effects on economic growth. FDI has a significant positive effect in Burkina Faso and negative effects in Gabon and Niger whereas the impact of debt is negative in all countries. Aid, however, promotes growth in Niger and Gabon whiles it deters growth in Ghana. Remittances, on the other hand, have a significant positive effect in Senegal. Finally, gross capital formation is significant in most of the countries and the impact of trade is mixed. These results suggest that the benefits of capital flows in SSA have been overemphasized.     

Productivity effects of international outsourcing: evidence from plant-level data

Abstract.  We investigate the impact of international outsourcing on productivity using plant-level data for Irish manufacturing. Specifically, we distinguish the effect of outsourcing of materials from services inputs. Moreover, we examine whether the impact on productivity is different for plants being more embedded in international markets through exporting or being part of a multinational. Our results show robust evidence for positive effects from outsourcing of services inputs for exporters, either domestic or foreign owned. By contrast, we find no statistically significant evidence of an impact of international outsourcing of services on productivity for firms not operating on the export market.     

The Impact of Input and Output Tariffs on Firms' Productivity: Theory and Evidence

This paper studies the impact of trade liberalization on productivity. It shows that when intermediate inputs are not highly differentiated, lowering input tariffs leads to a rise in within‐firm productivity and wages, and lowering output tariffs has the opposite effect. When intermediate inputs are highly differentiated, the conclusions reverse. These predictions are supported by the data, given by the industrial survey from INEGI (Mexico's Insitituto Nacional de Estadistica Geografia e Informacion) in the period 1984–90. The paper yields estimates for the elasticity of substitution among intermediate inputs, which are useful in determining the direction of the impact of trade liberalization. These estimates can be used to assess the gains from trade liberalization.     

Social Norms and the Time Allocation of Women's Labor in Burkina Faso

This paper proposes that major determinants of allocation of women's time are social norms that regulate the economic activities of women. The emphasis on norms contrasts with approaches that view time allocation as determined by household-level economic variables. Using data from Burkina Faso, it is shown that social norms significantly explain differences in patterns of time allocation between two ethnic groups: Mossi and Bwa. Econometric results show women from the two groups exhibiting different responses to changes in farm capital. Implications are that policies changing social norms may have more permanent effects on altering women's behavior.     

国家意愿与西部地区经济的持续增长——基于陕西的实证研究

本文通过建立一简单的新古典经济增长核算模型,对西部地区经济增长绩效进行了实证分析.结果表明,由政府主导的西部大开发战略的实施,推动了西部地区经济的快速增长.但是,其增长在很大程度上所依赖的是资本要素的投入特别是政府投资的增加,而非要素生产率水平的提高.这意味着,继续维持这种粗放型的经济增长模式,西部地区经济的持续增长将难以为继,而且对于西部地区经济结构的调整、市场的发育以及生产率水平的提高将会产生极为不利的影响.     

Productivity growth in Asian manufacturing: the structural bonus hypothesis examined

This paper examines the role of structural change in explaining aggregate productivity growth in the manufacturing sector of four Asian countries over the period 1963–1993. The conventional shift-share analysis is used to measure the impact of shifts in both labour and capital inputs. The results do not support the structural-bonus hypothesis, which states that during industrial development, factor inputs shift to more productive branches. This finding is robust, even when the conventional shift-share analysis is modified to take into account increasing returns to scale as described in Verdoorn's law. It is argued that improvements in productivity levels were widespread and depended negatively on the distance from the global technology frontier, confirming the Gerschenkronian notion of catch-up.     

R&D spillovers and productivity: Evidence from U.S. manufacturing microdata

This paper deals with the estimation of the impact of technology spillovers on productivity at the firm level. Panel data for American manufacturing firms on sales, physical capital inputs, employment and R&D investments are linked to R&D data by industry. The latter data are used to construct four different sets of `indirect' R&D stocks, representing technology obtained through spillovers. The differences between two distinct kinds of spillovers are stressed. Cointegration analysis is introduced into production function estimation. Spillovers are found to have significant positive effects on productivity, although their magnitudes differ between high-tech, medium-tech and low-tech firms. First version received: April 1997/final version received: April 1999     

Measuring pro-poor growth when relative prices shift

The theoretical literature on pro-poor growth as well as its application has not paid sufficient attention to the issue of varying inflation rates across the income distribution. Ignoring inflation inequality in pro-poor growth measurements can however severely bias assessments of pro-poor growth. Hence, we suggest simple methods which are able to redress such biases. As an empirical illustration, we use the case of Burkina Faso and the growth incidence curve and poverty change decompositions as pro-poor growth measurements.     

Does forced solidarity hamper investment in small and micro enterprises?

Summary: Previous research has shown that small firms in poor countries achieve high marginal returns to capital but show low reinvestment rates. We investigate whether transfers motivated by risk sharing and forced redistribution can explain this pattern and may therefore hamper private sector development. The idea is that the more redistribution distorts the fairness of insurance, the more potentially successful entrepreneurs may be hindered to undertake profitable investments. The empirical results based on a sample of small firms operating in Burkina Faso support the main propositions of this paper.     

Political instability and households’ investment behavior: Evidence from Burkina Faso

There is a large, rather macroeconomic, literature that shows that political instability and social conflict are associated with poor economic outcomes including lower investment and reduced economic growth. However, there is only very little research on the impact of instability on households’ behavior, in particular their saving and investment decisions. We merge six rounds of household survey data and a geo-referenced time series of politically motivated events and fatalities from the Armed Conflict Location and Event Data Base (ACLED) to analyze households’ decisions when exposed to instability in Burkina Faso. For identification, we exploit variation in the intensity of political instability across time and space while controlling for time- and municipality-fixed effects as well as rainfall and nighttime light intensity, and many other potential confounders. Our results show a negative association of political instability and financial savings, the accumulation of durables, investment in house improvements, as well as investment in education and health. Instability seems, in particular, to lead to a reshuffling from investment expenditures to increased food consumption, implying lower growth prospects in the future. With respect to economic growth, the sizable education and health effects seem to be particularly worrisome.     

Why are initial estimates of productivity growth so unreliable?

This paper argues that initial estimates of productivity growth will tend to be much less reliable than those of most other macroeconomic aggregates, such as output or employment growth. Two distinct factors complicate productivity measurement. (1) When production increases, factor inputs typically increase as well. Productivity growth is therefore typically less variable than output growth, meaning that measurement errors will tend to be relatively more important. (2) Revisions to published estimates of production and factor inputs tend to be less highly correlated than the published estimates themselves. This further increases the impact of data revisions on published productivity estimates.To assess the extent of these problems in practice, we detail the importance of historical revisions to the most commonly-used measures of US aggregate productivity growth, expanding on previous empirical work by Aruoba (2008) and Anderson and Kliesen (2006). We find that such revisions have contributed substantially to policymakers’ forecast errors for US productivity growth.     

中国BT抗虫棉的收益、成本和影响

本文利用1999年以来关于抗虫棉采用情况的持续调查数据,检验了Bt抗虫棉的生产效果。分析表明,采用Bt抗虫棉能够提高棉花的产量;更重要的是,种植Bt抗虫棉的农户由于减少了农药和劳动力投入而增加了收入,同时,对改善环境和保护农民健康也有正面影响。中国的经验可以被其他发展中国家所借鉴。     

The economics of biotechnology under ecosystem disruption

Economic analysis of chemical pesticide use has shown that the interactions between plants, pests, damage control technology and state of the ecosystem are important variables to be considered. Hence, a bio-economic model was developed for the assessment of Bt variety and pesticide-based control strategies of the cotton-bollworm in China. The model simulates plant growth, the dynamics of pest populations and of natural enemies. The model predictions are used as major inputs for a stochastic micro-level profit model of alternative control strategies.Results show that: (1) productivity effects of Bt varieties and pesticide use depend on the action of natural control agents, and (2) the profitability of damage control measures increases with the severity of ecosystem disruption. The findings highlight the importance of the choice of the counterfactual scenario in the assessment of the impact of agricultural biotechnology. Also, some doubts are raised whether the high benefits of Bt cotton varieties claimed by previous studies based on cross section comparisons are realistic.     

Sustainability and Wealth of Rural Households: Measurement and Inequality Analysis

A small but growing literature is linking well-being with the value of assets, measured comprehensively. This measure, called comprehensive wealth, has appeared as a leading economic indicator of sustainability by reflecting the potential of future well-being. Despite the concerns of sustainability for policy interventions at the micro-level, the existing literature is limited to country-level estimations. This paper applies the general framework of weak sustainability to measure wealth at the household level. Using data from three rounds of household survey, market prices, and yield data from rural Burkina Faso, we measure wealth, income, and consumption per adult. The results show that wealth has consistently increased over time in contrast to income and consumption which have fluctuated. Wealth is also less unequally distributed. Finally, consumption is found to be more correlated with wealth. This suggests that wealth-based interventions are more likely to improve well-being in a sustainable way.     

Consumption smoothing? Livestock,insurance and drought in rural Burkina Faso

This paper explores the extent of consumption smoothing between 1981 and 1985 in rural Burkina Faso. In particular, we examine the extent to which livestock, grain storage and inter-household transfers are used to smooth consumption against income risk. The survey coincided with a period of severe drought, so the results provide direct evidence on the effectiveness of these various insurance mechanisms when they are the most needed. We find evidence of little consumption smoothing. In particular, there is almost no risk sharing, and households rely almost exclusively on self-insurance in the form of adjustments to grain stocks to smooth out consumption. The outcome, however, is far from complete smoothing. Hence the main risk-coping strategies which are hypothesized in the literature (risk sharing and the use of assets as buffer stocks) were not effective during the survey period.     

Income taxes, spending composition and long-run growth

The focus of this paper is threefold. First, it reexamines the impact on long-run growth of changes in flat-rate income taxes when a fraction of total government expenditures is used to provide public services that affect the productivity of privately held inputs. Second, for a given tax policy, this paper studies the impact of government expenditure composition on the rate of economic growth. Third, since demographics follow an overlapping generations structure and fiscal policy affects the economy's productivity, the paper features the role of productivity as a means of redistributing income across generations. The economy is analyzed numerically and policy experiments are carried out.     

International Organization of Production with Heterogeneous Firms

This paper presents a North–South model with differentiated goods being produced in the North. Each differentiated final good requires both management and manufacturing services as inputs, and firms are heterogeneous with regard to their productivity levels in providing these inputs. Two scenarios of relocating manufacturing to the South, which are interpreted to correspond to vertical foreign direct investment (FDI) and offshoring, are investigated. In both cases there is a minimum level of management productivity required for firms to benefit from relocation of manufacturing to the South. In the case of offshoring, productivity and profit gains are relatively larger for firms with low initial manufacturing productivity. Firms with high initial productivity in both aspects choose not to offshore owing to the presence of fixed costs. The model is subsequently used to examine the implications of global economic integration on the type of firm that exits an industry, changes production location or keeps manufacturing domestically.