This paper discusses two alternative two-part models for fractional response variables that are defined as ratios of integers. The first two-part model assumes a Binomial distribution and known group size. It nests the one-part fractional response model proposed by Papke and Wooldridge (1996)...

One of the oldest and largest literatures in empirical economics is concerned with the estimation of demand and supply of goods, services, and factors across national or subnational borders (see Leamer and Levinsohn, 1995). The respective empirical models specified and estimated are often...

This paper proposes a generalized panel data model with random effects and first-order spatially autocorrelated residuals that encompasses two previously suggested specifications. The first one is described in Anselin's (1988) book and the second one by Kapoor, Kelejian, and Prucha (2007). Our...

Using a panel-data set of Austrian service exporting firms this paper examines the determinants of service exports at the firm-destination country level. We implement a random-effects Heckman sample selection firm-level gravity model as well as a fixed effects Poisson model. Expected firm-level...

This paper provides new insight into the firm-level employment impacts of trade cost changes at the industry level in the Austrian services sector. We apply a two-part model of firm survival (exit) and firm growth. Separate regressions for firm entry rates at the industry-region level complete...

This paper provides new insight into the firm-level employment impacts of trade cost changes at the industry level in the Austrian services sector. We apply a two-part model of firm survival (exit) and firm growth. Separate regressions for firm entry rates at the industry-region level complete...