Trade tariff,wage gap and public spending

This paper studies the interplay between wage gap and government spending in a small open economy facing a shock in trade policy. We consider a specific factor model with an export sector, which uses skilled labour, and an import-competing sector, which uses unskilled labour. We find the conditions under which there exists an inverse (direct) relation between trade liberalization (protection), which increases (decreases) the skilled-unskilled wage gap, and the level of government expenditure. We also show how either an unbalanced distribution of political bargaining power, or tariff revenue co-financing public spending may break this inverse relation. Moreover, the direct relation between tariff protection and public goods provision can be strenghtened by progressive taxation and weakened by regressive taxation.     

Effects of state-sponsored human capital investment on the selection of training type

Since the 1990s, firms in Japan have reduced their human capital investment in the workplace to minimize costs. Moreover, in response to the increase in the number of non-regular employees and turnover rates, workers need to have greater incentive to make the self-motivated investment in themselves for their self-protection. In this study, we first estimate the effects of workers’ self-motivated investment in themselves on wage rates. Next, we explore who is likely to participate in which training type and accordingly estimate the effects of the self-motivated investment on wage rates by training type. Our estimates controlling for individual-level fixed-effects indicate that the return is significantly positive and particularly high for practical training related to workers’ current jobs, and regular workers tend to self-select these higher-returns programs, while non-regular workers are more likely to enroll in lower-returns programs, such as schooling. This trend in investment in oneself could potentially increase the wage inequality between regular and non-regular workers through the self-selection of training types. Our estimates reveal that receiving the training and education benefit raises the likelihood for workers to participate in a high-return training program regardless of whether they are non-regular or regular workers. This suggests that government benefits on self-investment change workers’ self-selection of training type and serve to promote practical trainings that lead to high returns.     

Human capital revisited: The role of experience and education when controlling for performance and cognitive skills

Human capital theory predicts that differences in wages arise because of differences in human capital. The latter can be accumulated in two ways: through experience and education. Using matched firm–worker data for the Ghanaian Manufacturing sector we first test whether changes in wages over the life cycle reflect changes in performance, following the methodology of Medoff and Abraham [Medoff, J.L., &; Abraham, K.G. (1980). Experience, Performance, and Earnings. Quarterly Journal of Economics, 95(4), 703-736; Medoff, J.L., &; Abraham, K.G. (1981). Are Those Paid More Really More Productive? The Case of Experience. Journal of Human Resources, 16(2), 186–216]. We find that wage–seniority profiles are independent of performance – a result that holds when controlling for firm fixed effects. Extending the analysis, we include a control for on-the-job-training and find that it does not attenuate the seniority profile, which is also at odds with human capital theory. We do find however that firm characteristics play an important role. Wage–seniority profiles are steeper in large firms, but performance profiles are not, suggesting that the results from Medoff and Abraham are specific to large firms. We then assess the role of education. Our results confirm that education is important for the allocation to job levels. Using data on cognitive ability, we also find that the effect of education on wages is at least partially because it signals cognitive ability. We also find evidence that the returns to education are not related to performance, while the returns to cognitive ability are.     

Comment on: “Inflation dynamics with search frictions: A structural econometric analysis” by Krause, Lopez-Salido and Lubik

The implications of search frictions on the inflation dynamics are shown here for the case with wage adjustments typically belonging to the New Keynesian model, not to the Mortensen–Pissarides framework. In that model variant, I identify the role of search frictions by an additional term entering the slope coefficient of the inflation equation. After a numerical exercise, I find results that are in line with those obtained by Krause et al. [2008. Inflation dynamics with search frictions: a structural econometric analysis. Journal of Monetary Economics 55, doi:10.1016/j.jmoneco.2008.05.003.].     

审计变迁的趋势：目标、主体和方法

审计的行为要素包括审计的目标、审计的主体、审计的客体以及审计主体对客体的作用方式(主要是审计方法)。本文主要从理论和实践角度,说明构成审计行为的各主要要素的变迁规律和发展趋势,也对我国的审计实践进行理论分析并提出了政策建议。     

城市人力资本如何影响工资水平?

文章基于CHIP2013微观数据,运用分层线性等模型考察了经济集聚情况下城市人力资本对工资影响的四种微观机制,结果发现：地区人力资本深度对个体工资有显著促进作用,信息技术服务业专业化也有一定正影响,产业多样化虽与工资存在负相关,但在控制内生性后影响不显著,就业密度则有微弱促进作用。异质性分析表明：人力资本深度对女性、受教育程度高者工资的边际效应更强,且对东部的作用远远超过对中西部地区的影响。同时其效果随着收入分位数的提高而递减,减少了不同群体的收入差距,但收入阶层间差异并不显著;信息技术专业化程度同样对于女性和受教育程度高者边际作用更强,且其对最高收入分位点人群的促进作用最大;多样化程度对工资的抑制作用不稳健,对东部人群的工资消极影响更加显著,对中下等收入及以上的群体工资抑制随收入层次上升而递减。     

The South African labour market, 1995–2015

This study investigates the changes in the South African labour market in the post-apartheid period. While unemployment increased over the 1995–2015 period, employment also increased. Nonetheless, the extent of employment increase is not rapid enough to absorb all net entrants into the labour force, resulting in increasing unemployment, or an employment absorption rate of 65.3%. Unemployment is concentrated in specific demographically and geographically defined groups, most notably Africans, the lowly educated and those aged below 30 years, residing in rural areas in Gauteng. Finally, four worrying findings are observed: youth jobseekers aged below 30 years struggle to find their first job; chronic unemployment is more serious for the relatively older jobseekers (aged 45 years or above) with past work experience; employees working for small, medium and micro enterprises still stagnate at approximately 3.5 million; and jobseekers from the older age cohorts are less likely to actively seek work by enquiring at workplaces and answering job advertisements.     

The introduction of seasonal unit roots and cointegration to test index aggregation optimality: An application to a Spanish farm price index

In this paper we present a methodological proposal of the way integration and cointegration analysis can best be used to test if the level of aggregation of an index is adequate. Using this proposal, we enquire the extent to which a Spanish aggregate farm price index captures the behavior of its components. First version received: October 1994/final version received: September 1998     

Politico-economic consequences of rising wage inequality

This paper uses a dynamic political economy model to evaluate whether the observed rise in wage inequality and decrease in median to mean wages can explain some portion of the relative increase in transfers to low earnings quintiles and relative increase in effective tax rates for high earnings quintiles in the U.S. over the past several decades. Specifically, we assume that households have uninsurable idiosyncratic labor efficiency shocks and consider policy choices by a median voter which are required to be consistent with a sequential equilibrium. We choose the transition matrix to match observed mobility in wages between 1978 and 1979 in the panel study of income dynamics (PSID) data set and then evaluate the response of social insurance policies to a new transition matrix that matches the observed mobility in wages between 1995 and 1996 and is consistent with the rise in wage inequality and the decrease in median to mean wages between 1979 and 1996. We deal with the problem that policy outcomes affect the evolution of the wealth distribution (and hence prices) by approximating the distribution by a small set of moments. We contrast these numbers with those from a sequential utilitarian mechanism, as well as mechanisms with commitment.     

Reshaping the global agricultural landscape: perspectives from Brazil

This article highlights the main changes observed in Brazilian agriculture and analyzes the connections of the observed changes in global agriculture. My approach to the analysis focuses the main drivers of changes, where institutions play a central role. Three driving forces are are considered: first, the effects of global demand for food, fiber, and energy; second, the sustainability debate; and third, the bio‐energy paradigm. Each driver presents both local as well as global effects. The article does not emphasize the impact changes in Brazil had on the global agricultural landscape but argues that the impacts run from local and global changes, which cannot be discussed separately.