System Dynamics Society
1999 & 1998 Profit and Loss Statements
				Jan - Dec '99		Jan - Dec '98		% Change
		Income
			INC 1997 Turkey Conference	0		21,220		-100%
			INC Conferences	49,913		90,290		-45%
			Investment Income	4,470		8,324		-46%
			Membership Dues	18,452		15,948		16%
			Other Income	481		1		48,000%
			Prepaid Postage	8,109		7,916		2%
			Products	61,968		75,696		-18%
			Publications Sales	10,149		7,243		40%
			Sponsor Dues and Donations	12,910		12,738		1%
		Total Income		166,452		239,376		-30%
	Gross Profit			166,452		239,376		-30%
		Expense
			Accrued Interest Paid	0		641		-100%
			Bad Debt/Uncollectable Invoices	-25		0		-100%
			Bank Adjustments (Expense)	-30		40		-175%
			Bibliography Update Expense	725		783		-7%
			Contract with Univ at Albany	86,772		83,374		4%
			Cost of Goods - Management Game	13,974		13,630		3%
			Credit card fees	3,763		4,871		-23%
			Depreciation Expense	0		772		-100%
			EXP Conferences	30,361		41,301		-26%
			Gifts Given	0		27		-100%
			Gordon Brown Closeout	0		558		-100%
			Journal Expense	12,000		12,000		0%
			MA Filing Fee	205		0		100%
			Membership Compensation Credit	165		0		100%
			Membership Directory Exp	7,046		0		100%
			Membership Services	1,462		0		100%
			Miscellaneous Expense	460		9		5,011%
			Officer Expenses	1,683		2,700		-38%
			Printing & Duplicating	6,819		2,817		142%
			Professional Fees	7,524		4,132		82%
			Returns	0		25		-100%
			Services	5,956		10,000		-40%
			Shipping /Postage Expense	6,466		4,824		34%
			Sponsor Membership Incentives	3,480		3,400		2%
			Supplies	179		5		3,480%
			Uncategorized Expenses	0		0		0%
		Total Expense		188,985		185,909		2%
Net Income				-22,533		53,467		-142%

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