The gravity literature has focused on distance, borders and contiguity to measure geography's impact on trade. We add value to this literature in terms of data, method and assessment of effects. First, we expand existing geographical databases by adding topographical features. We supply novel...

We present a novel two-stage gravity specification with period-varying bilateral trade cost terms. We test our specification to confirm the benchmark result on declining international distance elasticities over time, using two new data sets. Analyzing period-varying bilateral trade cost derived...

We present a novel two-stage gravity specification with period-varying bilateral trade cost terms. We test our specification to confirm the benchmark result on declining international distance elasticities over time, using two new data sets. Analyzing period-varying bilateral trade cost derived...

The gravity literature has focused on distance, borders and contiguity to measure geography's impact on trade. We add value to this literature in terms of data, method and assessment of effects. First, we expand existing geographical databases by adding topographical features. We supply novel...