MALİYE POLİTİKASI PERSPEKTİFİNDEN DÖVİZ KURU OYNAKLIĞI VE TİCARET DENGESİ İLİŞKİSİ: ÇANAKKALE İLİ ÜZERİNE EKONOMETRİK BİR ANALİZ EXCHANGE RATE VOLATILITY AND TRADE BALANCE RELATIONSHIP FROM A FISCAL POLICY PERSPECTIVE: AN ECONOMETRIC ANALYSIS ON CANAKKALE PROVINCE