Table 4 Definitions of the variables used in Eq. (2).

From: Value chain upgrading and seafood exports: lessons from developing countries

Variable

Definition

Eijt

Seafood export value from country i to country j

GDP it, GDPjt

GDP (real term) of countries i and j

Disij

Geographic distance between countries i and j

Popit, Popjt

Population of countries i and j, respectively

TAijt

Trade agreements between countries i and j: 0 = no agreements and 1 = having agreements

RERijt

Exchange rates (real term) between countries i and j

FCRIt

The global financial crisis: 0 = no crisis and 1 = having the crisis

COVIDt

The COVID-19 crisis variable: 0 = no crisis and 1 = having the crisis

CORit

The control of corruption index of country i

GEFit

The government effectiveness index of country i

PRODit

Product upgrading of country i

PROCit and PROCit-1

Process upgrading of country i

OFDIit and OFDIit-1

Outward foreign direct investment of country i, proxy for functional upgrading

HDIit

Human development index of country i, proxy for social upgrading

αj

The importer fixed effect

εijt

The error term

  1. t and t-1 represent time t and t-1, respectively.