The Effect of Pension Subsidies on the Retirement Timing of Older Women

I estimate the effect of additional pension benefits on women’s retirement decisions by examining a German pension subsidy program. The subsidies have a kinked relationship with the recipients’ past pension contributions, creating a sharply different slope of benefits for similar women on either side of the kink point. I find that a 100 euro increase in the monthly benefit induces female recipients to claim their pensions six months earlier. Recipients also adjust their labor supply by using unemployment insurance as a stepping stone to retirement and by reducing time spent in marginal employment. A back-of-the-envelope calculation suggests that the ratio of behavioral to mechanical costs for this subsidy program is 0.25, which is smaller than that of many other income support programs.

Subsidizing Fuel-Efficient Cars: Evidence from China’s Automobile Industry

This paper examines the response of vehicle purchase behavior to China’s largest national subsidy program for fuel-efficient vehicles during 2010 and 2011. Using variation from the program’s eligibility cutoffs and the rollout of the subsidy program, the program is found to boost sales for subsidized vehicle models, but also to create a substitution effect within highly fuel-efficient vehicles. Estimates imply that ignoring the substitution effect would lead one to conclude that the program is welfare enhancing, whereas in fact the marginal cost of the program exceeds the marginal benefit by as much as 300 percent. (JEL D12, H25, L25, L62, O14, P23, P36)

The Effect of Fertilizer Subsidies on Investment in Soil and Water Conservation and Productivity among Ghanaian Farmers Using Mechanized Irrigation

The fertilizer subsidies reintroduced in various sub-Saharan African countries from 2007 aim to increase agricultural production and assist in the development of fertilizer markets. The present study evaluates the impact of a fertilizer subsidy program among farmers in Ghana who employ highly mechanized irrigation systems. The results indicate that farmers who received fertilizer under the subsidy program used 45% more fertilizer. However, they did not use more weedicide and were likely to reduce investment in soil and water conservation. Thus, the income gains resulting from the subsidy programs were not invested in such non-targeted inputs. Moreover, the program beneficiaries’ reduced investment in soil and water conservation may explain the finding that the subsidy did not improve their productivity. Thus, since fertilizer subsidy programs alone may not improve productivity, it may be necessary to target spending explicitly on complementary inputs such as investing in soil and water conservation.

Subsidy programme for gestational diabetes mellitus screening and lifestyle management in rural areas of western China: a study protocol for a multicentre randomised controlled trial

IntroductionGestational diabetes mellitus (GDM) has become an increasing health problem among pregnant women in western rural China. Insufficient compliance and motivation due to economic factors is one of the major contributors to the currently low GDM screening and management rate. A subsidy program offering GDM screening and lifestyle management might be an effective way to increase pregnant women’s awareness of GDM, and further improve maternal and neonatal health in western rural China. This study had two primary purposes: (1) to examine whether the subsidy program would increase the screening and management rates of GDM and reduce adverse complications for mothers and new-born babies and (2) to evaluate whether the subsidy program is cost-effective from a societal perspective.Methods and analysisThis randomised controlled trial will include 3000 pregnant women (at 24–28 weeks of pregnancy) who will be followed up at six hospitals in the provinces of Yunnan, Sichuan and Shaanxi in China. Pregnant women without overt diabetes, with a singleton pregnancy, with telephone access and with written informed consent will be invited. The intervention group will receive subsidies and standard care, and the control group will only receive usual antenatal care. The randomisation sequence will be stratified by study sites with balanced blocks of six patients. Data will be collected using self-report questionnaires and hospital records. Data will be analysed according to the intention-to-treat principle. The primary outcomes are the maternal and neonatal complications. Secondary outcomes are the mother’s cognition scores, screening rate, number of re-examinations, weight gain during pregnancy, changes in diet and exercise, and quality of life. Group comparisons will be conducted using χ2 test for categorical variables, and t-test or the Mann-Whitney-Wilcoxon test for continuous variables where applicable. Multiple logistic regression will also be performed for the primary outcomes.Ethics and disseminationThis study was approved by the Ethics Review Committee of Peking University Health Science Center. Findings will be disseminated through publication in peer-reviewed journals, seminars and national and international conferences.Trial registration numberChiCTR1800017488.