A series of β-Carboline derivatives were designed, synthesized, and evaluated for their fungicidal activities in this study. Several derivatives electively exhibited fungicidal activities against some fungi. Especially, compound F5 exhibited higher fungicidal activity against Rhizoctonia solani (53.35%) than commercial antiviral agent validamycin (36.4%); compound F16 exhibited high fungicidal ...

We look at managerial and production wages in countries that di er in size and relative endowments. Production labor is assumed to be a variable input composed of tradable tasks, while managerial labor is a xed, non-tradable input. Task performance is subject to increasing returns to scale on the country level, as in Grossman & Rossi-Hansberg (2010). We rst analyze country size and relative end...

If the future market wage is uncertain, engaging in long–term employment is risky, with the risk depending on how regulated the labor market is. In our experiment long– term employment can result either from offering long–term contracts or from repeatedly and mutually opting for rematching. Treatments differ in how regulations restrict the employer’s flexibility in adapting the employment contr...

National labour market institutions interact across national boundaries when product markets are global. Labour market policies can thus entail spill-overs, which suggest that there are benefits from international policy coordination. This paper studies the effects of wage subsidies in an international duopoly model with unionized labour markets. The authors document both positive and negative ...

In this paper, we use detailed trade and transactions data for the U.S. manufacturing sector to empirically analyze the direction and magnitude of the association between firm-level exposure to trade and the volatility of employment growth. We find that, relative to purely domestic firms, firms that only export and firms that both export and import are less volatile, whereas firms that only imp...

This paper examines the role of international trade, and specifically imports from lowwage countries, in determining patterns of job loss in U.S. manufacturing industries between 1992 and 2007. Motivated by intuitions from factor-proportions-inspired work on offshoring and heterogeneous firms in trade, we build industry-level measures of import competition. Combining worker data from the Longit...

The Asian economic crisis dramatically influenced the context in which a growing number of international migrants had begun to spread from poorer to more industrialised countries in East Asia, accompanying the export and FDI booms of the 1990s. Important uncertainties included the impact on clandestine migrant workers, replacement of migrants by local workers and countervailing pressures for in...

This paper studies the implications of globalization for aggregate output and welfare when risk averse workers face the risk of unemployment. The impact of globalization on the welfare of workers and aggregate output depends on the degree of substitutability between domestic workers and imported inputs. When the degree of substitutability is high (low), then globalization reduces (increases) wa...

The paper builds an argument that international trade can be an explanation behind polarization of employment in the labor market observed in developed countries such as U.K. and U.S. It considers a small open economy, having production sectors which use three types of labor: high-skill, middle-skill and low-skill. The economy faces an increase in the relative price of the high-skill intensive ...